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Objects
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| define a rule for a user specifying WITH OBJECTS |
if the user runs a SELECT that joins two tables owned by the same database:
- One row for the query is logged in DBQLogTbl
- Rows are logged in DBQLObjTbl as follows:
- A row for the database
- One row for each table
- One row for each accessed column, based on the Optimizer plan for the query
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| define a rule with WITH OBJECTS and the user runs a query that causes the Optimizer to reference the same object twice |
- One row for the object is logged in DBQLObjTbl.
- The value in the FreqofUse field is incremented to 2.
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SQL
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| begin query logging with no options for a user, and that user subsequently logs on and runs a query |
a default row is logged for that user in DBQLogTbl with 200 characters of the SQL. |
| begin logging for a user with no options and the user runs a query with more than 200 characters |
a row is logged in DBQLogTbl that includes the first 200 characters of the query. |
| create a rule for a user that specifies LIMIT SQLTEXT= 0 and the user runs a query |
logging depends on the following:
- If you also specified the WITH ALL or WITH SQL option, then the SQL text is logged only to DBQLSQLTbl.
- If you did not also specify WITH ALL or WITH SQL, then no SQL characters are logged.
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| define a rule specifying LIMIT SQLTEXT=10000 and the user runs a query containing 15000 characters |
a row is logged in DBQLogTbl that includes the first 10,000 SQL characters. |
| create a rule specifying LIMIT SQLTEXT=32000 (or anything larger than 10,000) and the user runs a query comprising >31000 SQL characters |
a row is logged in DBQLogTbl that includes the first 10,000 SQL characters. |
| define a rule with just the WITH SQL option |
The first 200 characters of the SQL statement are logged in DBQLogTbl and the entire statement is logged in as many rows as required in DBQLSQLTbl. |
| define a rule with both the WITH SQL option and LIMIT SQLTEXT=1000 |
The first 1,000 characters of the SQL statement are logged in DBQLogTbl and the entire statement is logged in as many rows as required in DBQLSQLTbl. |
| define a rule with the WITH SQL option and LIMIT SQLTEXT=0 |
None of the SQL characters are saved in DBQLogTbl. The entire statement is logged in as many rows as required in DBQLSQLTbl. |
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Steps
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| define a rule with WITH STEPINFO and the user runs a query that does not generate parallel steps |
One row is logged in DBQLStepTbl for each step used to resolve the query. In each row, the value of StepLev2Num is 0. |
| define a rule with WITH STEPINFO and the user runs a query that generates parallel steps |
One row is logged in DBQLStepTbl for each step used to resolve the query and each parallel step is differentiated by the step level number in StepLev2Num. |