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Startup Command and Parameter Reference
Startup Parameter Descriptions : Temporary Table Database Block Size (-tmpbsize)
 

Temporary Table Database Block Size (-tmpbsize)

Use Temporary Table Database Block Size (-tmpbsize) to specify the temp-table block size.
Operating system and syntax
UNIX / Windows
-tmpbsize n
Use with
Maximum value
Minimum value
Single-user default
Multi-user default
Client Session
4
4
n
An INTEGER that specifies the temp-table database block size. Valid values are:
*1 — Sets the block size to 1024 bytes.
*4 — Sets the block size to 4096 bytes. This is the default value.
*8 — Sets the block size to 8192 bytes.
The temp-table database block size dictates the size of each buffer in the temp-table database buffer pool for the current OpenEdge session.
Use Number of Buffers for Temporary Tables (-Bt) to specify the number of buffers in the temp-table database buffer pool.
Note: With the changes made in Release 10.1B to provide support for expanded keys and temp-tables, the default block size for temp-tables has increased from a 1KB block size to a 4KB block size on all platforms. If you are creating very small temp-tables, you might notice a performance degradation with this change.
See OpenEdge Getting Started: ABL Essentials for more information on temp-tables.