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Clarifications on Use of Binary Dump and Load

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EnvironmentProgress 8.x, 9.x
OpenEdge 10.x, 11.x
All supported platforms
Question/Problem Description
Discussion of the two methods to perform a binary dump and load of your Progress database
Methods to perform binary dump and load?
What are the different methods to perform binary dump and load?
Binary dump
Binary Load
Steps to Reproduce
Clarifying Information
Error Message
Defect/Enhancement Number
Cause
Resolution
Both processes to perform binary dump and loads dump records, they do not dump database blocks.
That means that database fragmentation is eliminated and that indexes must be rebuilt. This process is equivalent to a dictionary dump followed by bulkload and idxbuild.

Both processes require that the source and target table physical field layout match exactly (make sure the fields have the same Cyclical Redundancy Check [CRC]). You can obtain the CRC of a table from the _file record, _crc field.

Code similar to following can be used to report if 2 databases ( database A and database B) have non-matching CRCs on identically named tables:
FOR EACH a._file NO-LOCK WHERE a._file._file-number > 0,
       FIRST b._file NO-LOCK WHERE b._file._file-name = a._file._file-name AND
                  b._file._crc <> a._file._crc:
                          DISPLAY a._file._file-name
                                         a._file._crc
                                         b._file._crc.
END.

Do not perform this process if you are not absolutely sure that both source and target databases have matching physical field structure. If you dump and load the definitions of a table, you get different physical field layouts if there were any deleted fields in the definitions.

 However, please note the following from the v9 Database Administration Guide and Reference, specifically the reference section for proutil load:
"
For example, when you dump a table, the PROUTIL utility calculates a CRC value for the table and stores it in the header of the binary dump file. When you load the table, PROUTIL matches the CRC value stored in the header with the CRC value of the target table. The values must match or the load is rejected.
You can load binary dump files created with a previous version of the PROUTIL DUMP utility, because the current version of PROUTIL LOAD uses the CRC value established when the file was originally dumped. Consequently, the OpenEdge database maintains backwards compatibility.
However, you cannot use PROUTIL LOAD from Version 8.3 or earlier to load a binary dump file created using the Version 9.0 or later of the PROUTIL DUMP utility. The earlier versions of PROUTIL DUMP and LOAD did not use CRC values to establish the criteria for loading, but instead used other mechanisms,..."

In short: In Progress 8.x you cannot binary load any dump file created with Progress 9.x, but it is possible to load a dump file created with Progress 8.x into a Progress 9.x database.


The two methods of binary dump and load are:

1. dbrpr dump/load (the old way):

This requires additional considerations. It is not supported by Progress and is not officially documented. You should not use this method unless you fully understand the concept of field relative position (rpos).

Dump with the following steps:

1) proutil -C dbrpr.
2) Menu option #1.
3) Choose the dump option.
4) Load with proutil -C dbrpr, option "Load RM Dump File".
5) Do an idxbuild afterward.

Indexes are not disabled, so without an idxbuild, you cannot find the loaded records except via RECID reads.

2. proutil -C dump/proutil -C load (the supported method):

This method is documented and supported, and was introduced in Progress 8.2x. (Earlier versions do not disable indexes so you must idxbuild.)

The PROUTIL method is recommended for all large dump/loads because it is significantly faster than dictionary dump/loads. Keep in mind that proutil -C dump/load accepts normal database connection parameters.
Progress recommends that you use -RO (read-only) when you dump and -1 -i (single-user/no-crash recovery) when you load.

The -RO (client) parameter should not be used to connect to a database that is started as a server. Supply a -B parameter to allocate a medium size cache during the dump.
Load is a little faster without a -B because it is a sequential operation.
Workaround
Notes
Attachment 
Disclaimer

The origins of the information on this site may be internal or external to Progress Software Corporation (“Progress”). Progress Software Corporation makes all reasonable efforts to verify this information. However, the information provided is for your information only. Progress Software Corporation makes no explicit or implied claims to the validity of this information.

Any sample code provided on this site is not supported under any Progress support program or service. The sample code is provided on an "AS IS" basis. Progress makes no warranties, express or implied, and disclaims all implied warranties including, without limitation, the implied warranties of merchantability or of fitness for a particular purpose. The entire risk arising out of the use or performance of the sample code is borne by the user. In no event shall Progress, its employees, or anyone else involved in the creation, production, or delivery of the code be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss) arising out of the use of or inability to use the sample code, even if Progress has been advised of the possibility of such damages.



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