SAP ABAP Data Element CNV_COMBY (DB commit frequency in bytes)
Hierarchy
DMIS (Software Component) DMIS 2011_1
   CA-GTF-BS (Application Component) Business Application Support
     CNV_BASIS (Package) Conversion: Basis functions
Basic Data
Data Element CNV_COMBY
Short Description DB commit frequency in bytes  
Data Type
Category of Dictionary Type D   Domain
Type of Object Referenced     No Information
Domain / Name of Reference Type CNV_SIZE    
Data Type NUMC   Character string with only digits 
Length 8    
Decimal Places 0    
Output Length 8    
Value Table      
Further Characteristics
Search Help: Name    
Search Help: Parameters    
Parameter ID   
Default Component name    
Change document    
No Input History    
Basic direction is set to LTR    
No BIDI Filtering    
Field Label
  Length  Field Label  
Short 10 Commits 
Medium 15 Commit freq. 
Long 25 Commit frequency 
Heading 25 Commit frequency 
Documentation

Definition

Frequency of database commits during the update phase of the conversion.

Use

During the selection phase of the conversion the data is written to the special cluster table. In update phase this data is read from this cluster table, converted and written back to the original database table. To commit the changes in the database a COMMIT command has to be issued. This value controls how often this happens (after how many bytes are read from the cluster table since the last commit).

Dependencies

Example

Supplementary Documentation - CNV_COMBY 0001

Use

This value can have impact on the performance. The greater the value, the more seldom the data has to be commited and the less I/O activity is needed (commits are quite I/O-intensive). On the other hand seldom commits imply long transactions and the longer the transaction is the more undo / rollback buffer space is used, which can even lead the conversion program to dump.

Dependencies

Example

History
Last changed by/on SAP  20141030 
SAP Release Created in 2006_1_46C