CA Sysview DCTABLES DETAIL Key Length for a table
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CA Sysview DCTABLES DETAIL Key Length for a table

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Article ID: 195238

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Updated On:

Products

SYSVIEW Performance Management DATACOM - AD

Issue/Introduction

Sysview DCKEYS command shows a table can have multiple keys as expected with different lengths. However in DCTABLES DETAIL for a table, the "Key Length" field is different and larger than any of the individual key lengths. For example for AGR it is 1080:

---------------------------------------------------------------------------------------------------
DBID  Area  Table  TableID     Records  Occurrence                                                
 2  DD1   AGR         17         347  AGGREGATE                                                  
---------------------------------------------------------------------------------------------------
Attributes            Key Information          Status          Current History                    
Logging          YES  Change Master       YES  Constraint Error     NO      NO                    
Pipeline         YES  Dup Master          YES  Fwd Rcvry Pnd        NO      NO                    
Recovery         YES  Cluster Key ID        0  Load Pending         NO      NO                    
Compression      YES  Cluster Key Len       0  Related Pend         NO      NO                    
                                           Forced Off                   NO                    
                                                                                                  
Miscellaneous                                  Encryption                                        
Record Length    809  Compress Exit            Type   NONE                                        
Table Referred    NO  Encryption Key           Method NONE                                        
Table Referring   NO  DL/I T Constraint    NO                                                    
Key Length      1080  Domain Constraint    NO                                                    
Refs In Base      NO  Definition Posted                                                          
Table Loaded     YES  Index Loaded        YES                                                    
Table Constraint  NO  Restricted
MoveToPart                                                                                        

Environment

Release : 16.0

Component : SYSVIEW

Resolution

The value that Sysview displays as 'Key Length' comes from the Datacom CXX. It is the same as the Datacom CXX report value:
LENGTH OF KEY/ELEMENTS - 1,080

Amount of storage needed by the MUF to hold the CXX control blocks that contain each key, element, or special field definitions for the given table. 

Additional Information

See Datacom documentation on CXX REPORT