Shulou(Shulou.com)05/31 Report--

Xiaobian to share with you Oracle PL/SQL compilation warning PLSQL_WARNINGS example analysis, I hope you have something to gain after reading this article, let's discuss it together!

Three warning categories

1. SEVERE: Check for unexpected results, e.g. alias problems with parameters

2. PERFORMANCE: Performance issues, e.g. VARCHAR2 type provided for column NUMBER in insert

3. INFORMATINAL: Dead Code

Control warning messages (PLSQL_WARNINGS)

The default parameter is PLSQL_WARNINGS='DISABLE:ALL'

Example:

alter session set PLSQL_WARNINGS='ENABLE:INFORMATIONAL';

CREATE OR REPLACE PROCEDURE DEAD_CODE IS

DD VARCHAR2(22);

BEGIN

IF 2>1 THEN

DD:='1';

ELSE --Dead Code

DD:='2';

END IF;

END;

There will be warnings when compiling:

[Warning] PLW-06002 (7: 9): PLW-06002: Unable to execute code

After reading this article, I believe you have a certain understanding of "Oracle PL/SQL Compilation Warning PLSQL_WARNINGS Sample Analysis". If you want to know more about this knowledge, please pay attention to the industry information channel. Thank you for reading!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.