View the execution progress of stored procedures in Oracle: enable SQL tracking: ALTER SESSION SET SQL_TRACE=TRUE; execute the stored procedure; check the tracking file (ora<pid>.trc); analyze the execution plan and statistical information to determine efficiency and improve areas.
Steps to check the execution progress of stored procedures in Oracle
Checking the execution progress of stored procedures in Oracle database is very Important because it can help diagnose problems and optimize performance.
Step 1: Enable SQL Tracing
To enable SQL tracing in Oracle, use the following statement:
<code>ALTER SESSION SET SQL_TRACE=TRUE;</code>
Step 2: Execute stored procedure
Execute the stored procedure to be traced.
Step 3: Check the tracking file
After executing the stored procedure, the relevant tracking information will be stored in the tracking file. By default, the trace file is located in the database server's home directory and is named ora<pid>.trc
, where <pid>
is the process ID of the current session.
Step 4: Open the trace file
Open the trace file using a text editor or similar tool (such as TKPROF).
Step 5: Find the stored procedure execution information
In the trace file, find the information related to the stored procedure execution. This information is usually in a section labeled:
SQL text
: The text of the stored procedure. Execution Plan
: Execution plan of the stored procedure. Statistics
: Execution statistics of stored procedures. Step 6: Analyze the execution plan
The execution plan shows how the stored procedure accesses data. By analyzing an execution plan, you can determine how efficiently a stored procedure executes and potential areas for improvement.
Step 7: Check Statistics
Statistics provide detailed information about stored procedure execution, for example:
Tips:
SET SQL_TRACE=TRUE EXTENDED
. SET SQL_TRACE=TRUE FORCE
to limit it to the latest sessions. The above is the detailed content of How does Oracle see where the stored procedure is executed?. For more information, please follow other related articles on the PHP Chinese website!