How To Import Compressed Dump File Oracle

I need to migrate the AOL data into an xl sheet, like all the concurrent program related data along with the parameters it uses and the value sets associated with it will be stored in one tab. Expdp Export Failed: ORA-00439: feature not enabled: Dump File Data Compression Dump File Data Compression. In this tutorial we will see how we can export and import the content of one Oracle Schema using Oracle tools called EXPDP and IMPDP How to export/import an Oracle Schema - AODBA Toggle navigation AODBA. How do you import a dump file from a Linux-based Oracle database into a Windows-based database? Can this also be done with compressed and split chunks? The dump file from an Oracle export is platform independent. Just open up a Windows command prompt window and be sure your path includes the bin directory for 10g express and type in imp. It has compression and parallel processing enabled, so the dump file will be How to export and import Primavera P6 database schema using Oracle data pump utility Database: Oracle If you have Oracle Enterprise Edition installed and export/import larger Primavera p6 database schemas than considering the following link. Double-click on the OVF or OVA file. N can usually be found in /var/crash/`uname -n`(run the dumpadm command to see if that's where you are directing your crash dumps). DMP file in Oracle 10g with the size of 20GB takes almost 1 hour to import, but Oracle 11g version takes almost 3 hours for the same. gzip generally gives me the best compression ratio. Follow these steps to run a Data Pump Export with this parameter file: Type the parameter file into a text …. Reuse Dump Files Demo: REUSE. Released under The PostgreSQL Licence. Exports (exp/imp) represent database metadata information as DDLs in the dump file, but in datapump, it represents in XML document format. If you use FTP, be sure to copy it in binary format (by entering binary at the FTP prompt) to avoid file corruption. Datapump access files in the server (using ORACLE directories). The DBAs used these utilities to create dump files and then import them when necessary. But in original export/import we could directly compress the dump by using pipes. If you want to Import all the objects in a dump file you can type the following command. Tulisan ini sekedar tips kecil untuk mempermudah kalau anda ingin mengekspor suatu file dump di Oracle (mulai versi 10g) yang dibuat dengan fasilitas datapum (impdp). As usually the dumps can be very large files, it is advisable to compress the dump. This is the default. sql or catalog. You can use Oracle Data Pump to import complex databases, or…. How to process parallel export Oracle dump files. NONE disables compression for the entire export operation. To export a PostgreSQL database using the pg_dump program, follow these steps: Access the command line on the computer where the database is stored. Oracle will put exported dump file result and logs in this directory and also read export dump file from this directory. This article provides an overview of the main Data Pump enhancements in Oracle Database 11g Release 1, including the following. FTP (or scp) the file to the DBA repository server and uncompress it. The import log file. Remapping can occur during either the export or the import of the dump file. Move the dump file to the target database server. How do I recreate the database in the new server from the. Hazem Ameen Senior Oracle DBA (added Jun 26, 2011) Tip: This is another tip that will improve importing time. Home-> Community-> Mailing Lists-> Oracle-L-> Re: Import from a dump which was split and compressed while export. In other words, this will write the results of the query to the file. In Oracle Database 11g, Data Pump can compress the dumpfiles while creating them by using parameter COMPRESSION in the expdp command line. dmp fromuser=reception touser=contacts. The destination database does not have this future enabled. We don't use Oracle or have any in-house Oracle expertise. which means that Oracle 12c cannot interpret Oracle 11g. exp username/password file=file. Ensure that there’s enough network throughput available to the client instance by choosing an. Importing and exporting. If only a part of the table is desired, the query can be updated to get the desired result. Compress your data or file using UTL_COMPRESS package Oracle UTL_COMPRESS The UTL_COMPRESS package can be used to compress and uncompress large objects (raw, blob or bfile). After reading data blocks from the dump file set, Import decrypts and decompresses the data before loading it into the target database. The following is the imp command example in Oracle to import dmp file (database dump). so this expdp will create the backupsets in 70mb in size. Import Database. Creative DBAs have used file compression utilities, such as compress on UNIX, to get the most capacity from the dump file. An OVA file is a virtual appliance used by virtualization applications such as VMware Workstation and Oracle VM Virtualbox. Now create new schema or if you have already existing schema then drop and recreate it. By Chris Ruel, Michael Wessler. The JSON file is also extracted and stored in the VM machine folder. This article introduces a small number of new features for external tables in Oracle 11g. Try using the original import utility to process this dump file. dmp till create the of total size of dump set. Choose Restore Database from the pop-up menu. On the Database service compute node, invoke Data Pump Import and import the data into the database. This dump file is transferred to the target database. What I have. If only a part of the table is desired, the query can be updated to get the desired result. Tagged: expdb, impdb, Importing and Exporting Oracle database Using data Pump Utility, oracle DataPump Utility. Once the file exported from the on premise database and moved to the Oracle RDS OMF you can use the UTL_FILE capability in the database and import a file into the RDS instance, and then do impdb (data pump import) from there. Oracle Application Express (APEX) is a low-code development platform that enables you to build stunning, scalable, secure apps, with world-class features, that can be deployed anywhere. You can use the Oracle IMP utility to import the content of a Oracle. In the same way, on the fly decompression can be achieved to perform import operations reading directly from a compressed file. Datapump compression parameter DATA_ONLY results in all data being written to the dump file in compressed Oracle partition table export and import using. IMPORT IN DEV DATABASE - - Presume same directory structure exists on DEV box. In full import mode, the entire content of the source (dump file set or another database) is loaded into the target database. This method is especially useful if you do not have enough space in one file system to perform the complete expdp job. The following describes how to use Data Pump Import utility to import objects. A table or schema level dump file will not be suitable. Oracle_loader: This is used for the reading the flat files using the oracle loader technology. Now import is successfully completetd and it read the dump file from three different location. Data Pump Import Parameters You’ll need the IMPORT_FULL_DATABASE role to perform an import if the dump file for the import was created using the EXPORT_FULL_DATABASE role. This article provides an overview of the main Data Pump enhancements in Oracle Database 11g Release 1, including the following. Change the active code page of the command prompt. NOTE:- If you use compression yes will save space on the disk to store the dump file however keep in mind that compression is a recourse intensive operation and therefore you will have to compromise with performance overhead. Other new features include table renaming, data pump and partitioned table operations, overwrite dump files, the data_options parameter and the transportable. After export is successful, import the dump file into ordb database. My question is: Do you know of any good compression utility/algorithm for. We need to setup the database so we can connect to it and debug a problem. Create UNIX PIPE in area where dump is copied to in DEV box. Keep in mind a server dump is a pure text file and text files are among those that can be compressed most. But in case if used, then create a user in the destination database that is mentioned in TOUSER clause then try importing the dmp file. NOTE:- If you use compression yes will save space on the disk to store the dump file however keep in mind that compression is a recourse intensive operation and therefore you will have to compromise with performance overhead. I have a dump file and want to import in Oracle ubuntu, I use the Command $. 0), then it is not required to specify the parameter VERSION=10. Here is an example on how to import a Oracle database dump file (a binary file that's exported from a Oracle database using the Oracle data pump utility). This option is just available from Oracle 11g. Tagged: expdb, impdb, Importing and Exporting Oracle database Using data Pump Utility, oracle DataPump Utility. Database Engineer in Atlanta, USA. Oracle 11g Data Pump expdp compression option to reduce the export dump file Oracle 11g provides different types of data compression techniques. Separate Files – write out a file for each table (and for the blobs, a file for each of those too) Compressed – zip that stuff up; So basically just like this. The DB is around 1 TB Now due to space constraint I was able to place 3 dumps on one file share and the 4th on anther file share different directory. How to Import Table in oracle using IMPDP-brtools Login as orasid user and open Brtools : entering command brtools. Set the RECORDLENGTH parameter to a high value. A dump file was specified for an import operation which appears to have been created using the original export utility. sql’ script. The dump file size was reduced by 74. Now you import all objects of ab to another user say xyz. sql with a text-ed, ctrl+c, go to access, create a blank db, go to "execute sql" (is there something like that? used '97 many years ago) and ctrl+v your sql in here. svnadmin load /path/to/repository < svnexport. Thanks, -Prasad. Importing Dump File in Oracle User The Oracle dump file must be imported into the Oracle schema by using the impdp command. You can export a PostgreSQL database to a file by using the pg_dump command line program, or you can use phpPgAdmin. Define the Cloud Import Job. 0 target database with COMPATIBLE=10. The purpose of their introduction was to employ the more advanced features of database while exporting and importing data. org On Behalf Of A Joshi Sent: Thursday,. In the next window choose the restoring type. In the new server I installed the Oracle Database 10g software only (did not create a database). The export data pump has the VERSION option allowing to create a dump file which is compatible with a previous release. SQL file using the sqlfile parameter steps by steps. That file could hold a single table, two or more tables, an entire tablespace, two or more tablespaces,. 10g / 11g Oracle has also released Data Pump Export and Import tools, which are enhanced versions of original Export and Import tools. But in original export/import we could directly compress the dump by using pipes. The output file contains SQL statements defining all tables and inserting the data. A full import is specified using the FULL parameter. Import Oracle dump File to Sql Server. Compressing the Data While Exporting. Importing an Oracle 10g schema from a datapump DMPDP file: 1. Change the active code page of the command prompt. Traditional export can access files in client and server both (not using ORACLE directories). After verifying that the data has been imported successfully, you can delete the dump file. (without compression) 2. The database you are importing into must already exist on your Cloud SQL instance and it must be empty. sql or catalog. But before actually importing, we would like to just have a look at the contents of the dump file, to make sure we are importing the right dump file and that nothing goes wrong after importing. To speed up exporting data into dump Oracle allows export operation to be executed by multiple threads that are working at the same time. MF) and certificate files, and other related files. A Web server is a daemon, it stays dormant until it gets asked for a web page. The option uses the Oracle database file transfer package called dbms_file_transfer. The command prompt you use to execute the Oracle Export and Import commands is not a Unicode-enabled tool. Now you need to create rule file for data load. Oracle Data Pump was introduced in Oracle 10g. Double-click on the OVF or OVA file. Thanks, -Prasad. This following command needs to be typed in at the c: prompt, and assumes that the dmp file is in the root C: drive. Oracle: How to kill data pump jobs (Below example is for import (impdp) the same is applicable for export (expdp) ) When you import or export using data pump impdp or expdp tools, the import/export is done by a job. 5)Expdp/Impdp access files on the server rather than on the client. Now you import all objects of ab to another user say xyz. dmp) files with Oracle's export (exp) and import (imp) utilities, you can compress and uncompress the dump file as needed using gzip and gunzip (from GNU) or the unix compress and uncompress utilities. Set LOG_BUFFER to big size. For example if you have user named user1 and you will import to user2 you may lost all grants , so you have to recreate it. Unfortunately we cannot rollback the whole database to that point of restore and our only available route is import the before-image data from the backed up dump file. Cloud SQL supports importing and exporting both compressed and uncompressed files. In order to use exp and imp in Oracle Database you have to run catexp. How to import a Oracle database dump file Here is an example on how to import a Oracle database dump file (a binary file that's exported from a Oracle database using the Oracle data pump utility). Can anyone tell me how to do this or suggest a url with. DMP file that was created with an Oracle DataPump Export (expdp). That is vewy, vewy bad. You have build DNS “bisp”, so you need not to specify connection information again. Oracle_loader: This is used for the reading the flat files using the oracle loader technology. Best Regards. In Oracle Database 11g, Data Pump can compress the dumpfiles while creating them by using parameter COMPRESSION in the expdp command line. dmp files, you can run impdp multiple times, once for each *. Dump file encryption can also be used in conjunction with the dump file compression feature. go to command prompt and fire the below the command c:/databasedumpfolder:> imp system/[email protected] fromuser=sanjit_ipa touser=sanjit_ipa file="sanjit_ipa_new. ORA-39143: dump file "C:\oracle\ggexp. Some friends suggested that it is possible through command prompt. This article provides an overview of the main Data Pump enhancements in Oracle Database 12c Release 1, including the following. The command prompt you use to execute the Oracle Export and Import commands is not a Unicode-enabled tool. How to start Cron Cron is a daemon, which means that it only needs to be started once, and will lay dormant until it is required. Check listener [[email protected] ~]$ lsnrctl status LSNRCTL for Linux: Version 12. Click the Go button to begin the import. Exporting data directly to a compressed file. The files are written in a proprietary, binary format. Click the Choose File button. sql or catalog. How to Restore a Database Backup Using. As before, when you wish to import a tablespace, it can be from a full dump file, or a tablespace level dump file – provided that the tablespace(s) you want to import are actually present in the file. You must have the DATAPUMP_IMP_FULL_DATABASE role if the source is another database. Import data via a network link in Oracle 10g [NO TO DUMP FILES] Import data via a network link in Oracle 10g Here we are going to import the data through database link and not taking dump files. dmp file into Oracle 9i? If this is your first visit, be sure to check out the FAQ by clicking the link above. Version Export In your case, both the export (expdp) and import (impdp) are with Data Pump and you can use the version [parameter to export from a later release of Oracle an import that dump file into an earlier release of Oracle. Here is an example on how to import a Oracle database dump file (a binary file that's exported from a Oracle database using the Oracle data pump utility). Import (IMP) and Export (EXP) are among the oldest surviving Oracle tools. I used 7zip to unzip it and it unzipped to a ~230 GB. I compiled all forms and i could get the login screen. I have tried to convery the data in the ldt file into xl. In the following compression example from the Oracle sample database, the oe and sh schemas were exported while simultaneously compressing all data and metadata. def connScan(tgtHost, tgtPort):. Import dmp File in Oracle 11g Using Command Prompt imp userid=yourid/ [email protected] file=f:\temp\rcp. In full import mode, the entire content of the source (dump file set or another database) is loaded into the target database. Remapping of data in Data Pump is supported with the use of the new remap_data parameter. How to export dump file from Standby Database. Using Datapump its a very easy task but want to check whether we can estimate the size of the Compressed Export Dump file. How to start Cron Cron is a daemon, which means that it only needs to be started once, and will lay dormant until it is required. The DBAs used these utilities to create dump files and then import them when necessary. That file could hold a single table, two or more tables, an entire tablespace, two or more tablespaces,. The resulting repository will be about 15GB. dmp file If this is your first visit, be sure to check out the FAQ by clicking the link above. Oracle Data Pump Export is a built-in utility program for unloading data and metadata into a set of dump files. I did export using expdp with parameter filesize and 5 files of 10Gb are created. Click the Go button to begin the import. dmp Fortunately, it is well-mentioned in many web sites including the OTN forum. During an import operation, the Data Pump Import utility uses these files to locate each database object in the dump file set. Q14 =I have an expdp dump file without its log file with me and i have no access to the export file's source DB. This tutorial provides an introduction on how to restore an Oracle database from the RMAN backup. Oracle: How to kill data pump jobs (Below example is for import (impdp) the same is applicable for export (expdp) ) When you import or export using data pump impdp or expdp tools, the import/export is done by a job. dmp file If this is your first visit, be sure to check out the FAQ by clicking the link above. By Chris Ruel, Michael Wessler. Since you have already taken backup of your database schema using Expdp. We’ll use that Excel file to populate an empty copy of the EMPLOYEES table in another schema. I got a compressed file Amin. by Bob Watkins in Data Management on May 29, 2007, 12:00 AM PST Even as far back as Oracle 8i, the Export utility could handle large exports by. def connScan(tgtHost, tgtPort):. mknod import_pipe p. This file contains SQL statements to create all tables and to fill them with the data. dmp file is 9. Now import is successfully completetd and it read the dump file from three different location. The following is an excerpt from the book. Importing a dump file compressed with inline compression( used gzip) If this is your first visit, be sure to check out the FAQ by clicking the link above. I want to import about 200 tables (into a schema of about 3500) tables from a backup dump file. Consider following example, into this we are exporting full database with the help of PARALLEL parameter, this export will create 4 dump files on dump directory. Obtain your copy of the. Oracle Application Express (APEX) is a low-code development platform that enables you to build stunning, scalable, secure apps, with world-class features, that can be deployed anywhere. just take backup dump files migrate to sql server manual. The compressed dump file is about 2G. What is the Problem?. An OVA file is a virtual appliance used by virtualization applications such as VMware Workstation and Oracle VM Virtualbox. An old DMP file I've found on my drive contains the text EXPORT:V10. Importing Dump File in Oracle User The Oracle dump file must be imported into the Oracle schema by using the impdp command. Home » Articles » 11g » Here. Trust me in this also for I tell you frankly that if you 1Z0-888 Latest Exam Answers do not, everything even at the last moment may be ruined, As the child complained of hunger and thirst,she climbed over the fence with him; and, sitting down Dump 1Z0-888 File behind a large rock which concealed them from the road, she gave him a breakfast out. They are command line tools used to extract tables, schemas, or entire database definitions from one Oracle instance, to be imported into another instance or schema. Version Export In your case, both the export (expdp) and import (impdp) are with Data Pump and you can use the version [parameter to export from a later release of Oracle an import that dump file into an earlier release of Oracle. Export in oracle 9i. 0 - Production on 0. Having a re-usable dump file for installing Oracle Database Sample Schemas is much more convenient than the current method. For partitioning, you need Oracle Enterprise Edition (EE). Compression is the option to achieve the data compression in data pump. Compressing the Data While Exporting. You will need. Change Schema/User If the dump file was created from one schema, but you want to import tables into another schema IMP allows you to change the schema/user name using FROMUSER and TOUSER options:. Any help would be greatly appreciated. Oracle: How to kill data pump jobs (Below example is for import (impdp) the same is applicable for export (expdp) ) When you import or export using data pump impdp or expdp tools, the import/export is done by a job. Before performing the import you must know the directory object of the directory where dump-files are located also the names of dump-files from which you will import the tables. For ArcSDE geodatabases for SQL Server licensed through ArcGIS Server Enterprise, you can specify all data and log files in a comma-delimited list in the sp_attach_db stored procedure. Hi All, I am usign Oracle database 10g, anybody havign any idea of how to compress your dumpfile using expdp then let me know. Starting in Oracle Database 11g, the COMPRESSION parameter can be used to compress a Data Pump dump file as it is being created. ZFS is a combined file system and logical volume manager designed by Sun Microsystems. This is the default. Export/Zip and Unzip/Import using UNIX Pipes. Applies to: Oracle Database - Enterprise Edition - Version 10. Step1 Use the below steps to create a new user and grant access to the user on the source database. sql or catalog. Use zip or gzip to compress the dump file for easier FTP and/or mailing; Write the contents of the log file into the body of an email. MyOraDump is a program that will export oracle data stored in most of the basic oracle types as a text file that can for example be used for import into other databases, for example MariaDB and MySQL. Importing tablespaces, schemas and objects. How to dump file ( export and import) on pluggable database 1. ORA-39142: incompatible version number 3. If the dump or export involves processing of data, for example real‐time compression or decompression, choose an instance class with at least one CPU core per dump or import thread. Export/Import to/from a compressed file To reduce the amount of space used when exporting one can compress the data as creating export file and also import data from a compressed file. Data Pump is modeled after Oracle 12c’s Export/Import tools that were available prior to Oracle 10g. Each thread generates output in its own file, so the result of the parallel export job is a set of files. dmp file to analyze, click the “Upload Dump” button. Data Pump compression is fully inline on the import side as well, so there is no need to uncompress a dump file before importing it. For this instruction example, let's say I was given a myapp. To resolve this i used the GUNZIP Linux utility and the re-imported the data and it completed successfully. 7)Sequential media, such as tapes and pipes, are not supported in oracle data pump. Oracle 11g Data Pump expdp compression option to reduce the export dump file Oracle 11g provides different types of data compression techniques. I enabled compression and. Some time you also need to change the JOB_NAME as master table is left behind OR table needs to be dropped. ? I want the data from oracle to sql2005. METADATA_ONLY: Enables compression for all metadata being written to the dump file. I did export using expdp with parameter filesize and 5 files of 10Gb are created. dmp file?? thank you!!!!. ? We Can Import any text data file into a oracle table. By watching this video you are able to know How to import oracle database or dmp file with Apex 5 in oracle 11. I have SAS on windows with EG. This file will look at Vixie Cron, a version of cron authored by Paul Vixie. One other note on importing a dmp file. In those old days when there was the exp utility we made a time consistent export dump by using the consistent=y parameter. When we import it back and pass all the file names, again Oracle is aware that “I created these files and i know how to read them in sequence”. Oracle Export/Import dump file. Cloud SQL supports importing and exporting both compressed and uncompressed files. Best Regards. 10g / 11g Oracle has also released Data Pump Export and Import tools, which are enhanced versions of original Export and Import tools. Introduction to Oracle Datapump – Part 1 Send article as PDF Oracle Datapump , aka expdp and impdp were introduced at Oracle 10g to replace the old faithful exp and imp utilities. Importing SQL dump files to Cloud SQL Before you begin. Import data via a network link in Oracle 10g [NO TO DUMP FILES] Import data via a network link in Oracle 10g Here we are going to import the data through database link and not taking dump files. The dump file set comprises one or more disk files that contain table data, database object metadata, and control information. It takes more time than normal EXPDP operation. Can anyone tell me how to create a dump file for Oracle 10g database? I need to export and import all tables of a particular user in the database to another system. Specifies the maximum size of each dump file. Home-> Community-> Mailing Lists-> Oracle-L-> Re: Import from a dump which was split and compressed while export. Import Syntax. In those old days when there was the exp utility we made a time consistent export dump by using the consistent=y parameter. I want this dump file to be zipped. IMPORT IN DEV DATABASE – – Presume same directory structure exists on DEV box. There is no direct network connectivites between these two VPC. After uncompress, the Amin. Try using the original import utility to process this dump file. I usually backup the database by mysqldump, but the plain SQL dump file was getting larger and larger and took most of the free space. During import the bootable image is extracted from the archive and converted into VMDK format. i installed oracle 11g and devsuite 11g forms and report in my laptop and imported oracle 10g dump file. The following command allows you to dump a table’s metadata and data into a sql file: mysqldump -u user DB_NAME TABLE > /tmp/fle. You would need to import the dump file into a working database instance and then use tools to export the data into CSV format. On the Database service compute node, invoke Data Pump Import and import the data into the database. Having a re-usable dump file for installing Oracle Database Sample Schemas is much more convenient than the current method. drop KAFITGFIN CASCADE;…. For this instruction example, let's say I was given a myapp. Create a compressed archive file. Original Import will be maintained and shipped forever, so that Oracle Version 5. And would be required to import it to another database or schema. For this instruction example, let's say I was given a myapp. Learn about exporting a MySQL database to a dump file, securing and transferring the backup file, importing the MySQL dump to the new server, and more. Compression is the option to achieve the data compression in data pump. In Oracle Database 11g, Data Pump can compress the dumpfiles while creating them by using parameter COMPRESSION in the expdp command line. To import full dmp file type this command in cmd: To import dept table alone type this command in cmd: FROMUSER and TOUSER clause are optional. Dump file generated using the “high compression” size was around 6. It is a package that contains files used to describe a virtual machine, which includes an. This is the default. How to Import Oracle 12C Dump in 11. There is a built in tool help you analyze an export dump file to get information such as NLS_LANG,export mode, export user, and extract DDL of data objects such as table,view,index and so on. You can look at this example Oracle expdp tips But yes you can import a dmp into mysql but the dmp must have been created like the example above. I did export using expdp with parameter filesize and 5 files of 10Gb are created. The Oracle Data Pump Import utility is used to load an export dump file set into a target database. ora 34> brtools BR0651I BRTOOLS 7. Introduction to Oracle Datapump - Part 1 Send article as PDF Oracle Datapump , aka expdp and impdp were introduced at Oracle 10g to replace the old faithful exp and imp utilities. When we import it back and pass all the file names, again Oracle is aware that “I created these files and i know how to read them in sequence”. That is vewy, vewy bad. To import from the compressed file to just the opposite. Can anyone tell me how to create a dump file for Oracle 10g database? I need to export and import all tables of a particular user in the database to another system. Now, you have two choices to avoid ORA-39143. > expdp username/password DIRECTORY=dpump_dir1 JOB_NAME=hr DUMPFILE=par_exp%u. MyOraDump is a program that will export oracle data stored in most of the basic oracle types as a text file that can for example be used for import into other databases, for example MariaDB and MySQL. The above two utilities have similar look and feel with the pre-Oracle 10g import and export utilities (imp and exp) but are completely separate. Compression happens parallel with the export. 88 GB; Dump file generated using “medium compression” size was around 7. Thanks, -Prasad. The DB is around 1 TB Now due to space constraint I was able to place 3 dumps on one file share and the 4th on anther file share different directory. Oracle EM; Command Prompt; First, Let me start with creating table dump using the export for the table zip. ? We Can Import any text data file into a oracle table. You can use Oracle Data Pump to import complex databases, or…. I want to import this file into SQL server 2000 or 2005 without restoring into Oracle db which I dont know how to do that. Expdp/Impdp operate on a group of files called a dump file set rather than on a single sequential dump file.