The output of sp_iqcheckdb consists of an extensive list of statistics and any errors reported by DBCC. Only non-zero values are displayed. Lines containing errors are flagged with asterisks (*****). Note that if you encounter errors, some of the statistics reported by DBCC may be inaccurate.
See the section “DBCC error messages” for the full list of DBCC error messages.
The output of sp_iqcheckdb is always copied to the IQ message file (.iqmsg). To redirect the sp_iqcheckdb output to a file, enter the following command:
sp_iqcheckdb ># file_name
where file_name is the name of the file to receive the output.
When the DBCC_LOG_PROGRESS option is ON, sp_iqcheckdb sends progress messages to the IQ message file. These messages allow the user to follow the progress of the sp_iqcheckdb procedure as it executes.
The following is sample progress log output of the command
sp_iqcheckdb ‘check database’
IQ Utility Check Database Start CHECK STATISTICS table: tloansf Start CHECK STATISTICS for field: aqsn_dt Start CHECK STATISTICS processing index: ASIQ_IDX_T444_C1_FP Start CHECK STATISTICS processing index: tloansf_aqsn_dt_HNG Done CHECK STATISTICS field: aqsn_dt
If you see the message “DBCC Future Version Errors,” a DDL operation has been performed since the DBCC transaction began. DBCC continues to process the remaining tables, but leaked block checking is not performed and statistics do not include the tables that were skipped.
To avoid DBCC Future Version errors, execute the COMMIT command before you run sp_iqcheckdb.
The following DBCC output indicates a Future Version error:
=======================================|===========================|===== DBCC Verify Mode Report | | =======================================|===========================|===== ** DBCC Future Version Errors |1 |*****
The following is an example of running sp_iqcheckdb in verify mode. No errors are detected, there is no leaked space, the database allocation is consistent, and all indexes are consistent.
The command line for this example is sp_iqcheckdb
'verify database'. Note that DBCC verifies all
indexes, but the index verification output shown here is abbreviated.
Each index that DBCC determines to be consistent is marked as verified in the result set.
Stat Value Flags =================================|==================================|===== DBCC Verify Mode Report | | =================================|==================================|===== DBCC Status |No Errors Detected | DBCC Work units Dispatched |75 | DBCC Work units Completed |75 | =================================|==================================|===== Index Summary | | =================================|==================================|===== Verified Index Count |86 | =================================|==================================|===== Allocation Summary | | =================================|==================================|===== Blocks Total |8192 | Blocks in Current Version |4855 | Blocks in All Versions |4855 | Blocks in Use |4855 | % Blocks in Use |59 | =================================|==================================|===== Allocation Statistics | | =================================|==================================|===== DB Extent Count |1 | Blocks Created in Current TXN |211 | Blocks To Drop in Current TXN |212 | Marked Logical Blocks |8240 | Marked Physical Blocks |4855 | Marked Pages |515 | Blocks in Freelist |126422 | Imaginary Blocks |121567 | Highest PBN in Use |5473 | Total Free Blocks |3337 | Usable Free Blocks |3223 | % Total Space Fragmented |1 | % Free Space Fragmented |3 | Max Blocks Per Page |16 | 1 Block Page Count |104 | 3 Block Page Count |153 | ... 16 Block Hole Count |199 | =================================|==================================|===== Index Statistics | | =================================|==================================|===== ... Verified Index |fin_data.DBA.ASIQ_IDX_T209_C3_HG | Verified Index |fin_data.DBA.ASIQ_IDX_T209_C4_FP | Verified Index |product.DBA.ASIQ_IDX_T210_C1_FP | ... Verified Index |employee.DBA.ASIQ_IDX_T212_C20_FP | Verified Index |iq_dummy.DBA.ASIQ_IDX_T213_C1_FP | FP Indexes Checked |68 | HNG Indexes Checked |1 | HG Indexes Checked |17 | =================================|==================================|===== ...
The DBCC output also contains extensive statistical information
grouped under headings such as Container Statistics, Buffer Manager
Statistics, Catalog Statistics, Connection Statistics, and Compression
Statistics. You can see an example of the available statistics by
executing the command sp_iqcheckdb 'verify
database' after connecting to the Sybase IQ demonstration database asiqdemo.
