- 通过DBA_SOURCE定位SQL语句属于哪个存储过程
- 最近集中进行了一系列SQL优化,主要通过ADDM和AWR对捕捉COST或物理读、逻辑读很高的语句,问题的主要原因是全表扫描。但提交开发后开发反馈找不到SQL语句,因为属于存储过程。其实通过EDITPLUS全目录检索肯定能够找到该语句的位置,但为了便于日后定位,笔者还是通过ORACLE的dba_source视图进行了步骤。
- 什么是dba_source字典视图:
- 存储所有函数、过程、程序包和Java源的完整的文本,对于你了解一个数据库对象的源代码很有用。存储过程在该视图中是以行为单位进行存储的。
- SAMPLE:
- 问题sql语句
- Select Count(*)
- From Sample_Con_Sta_No Cs
- Where Cs.Deleted_Flag = 0 And (Cs.In_Out_Group_Status != '1' And Cs.In_Out_Group_Status != '2') And
- Cs.Con_Id In
- (Select Con_Id
- From Sample_Ent_Con Ec
- Where Ec.Ent_Id In (Select Ent_Id From Sample_Ent_Con Ecc Where Ecc.Con_Id = :B1))
- 定位方法:
- 截取“Select Ent_Id From Sample_Ent_Con Ecc Where Ecc.Con_Id”去视图查询(注意dba_source视图中存储的是行为单位拆分的存储过程等对象,关键词太长肯定找不到)
- 查询语句:
- Select * From dba_source Where text Like '%Select Ent_Id From Sample_Ent_Con Ecc%'
- 查询结果:
- OWNER
- NAME
- TYPE
- LINE
- TEXT
- SAMPLE
- PKG_SAMPLE_CON_STATUS
- PACKAGE BODY
- 35
- (Select Ent_Id From Sample_Ent_Con Ecc
- Where Ecc.Con_Id = v_Con_Id));
- 分析:
- 该语句在PKG_SAMPLE_CON_STATUS的35行
- 确认:如下存储过程35行确实有该行内容
- CREATE OR REPLACE Package Body Pkg_Sample_Con_Status Is
- -- Private type declarations
- -- Private constant declarations
- -- Private variable declarations
- -- Function and procedure implementations
- Function Func_Is_Over_Clearance_State(v_Con_Id In Number, v_Clearance_State In Varchar2) Return Number Is
- v_Num Number;
- Begin
- Select Count(*)
- Into v_Num
- From Sample_Ent_Status_Note
- Where Deleted_Flag = 0 And
- Ent_Id In (Select Ent_Id From Sample_Ent_Con Where Con_Id = v_Con_Id) And
- Clearance_State < v_Clearance_State;
- If v_Num > 0 Then
- Return 0;
- Else
- Return 1;
- End If;
- End Func_Is_Over_Clearance_State;
- -- 判断
- Function Func_Is_All_Con_In(v_Con_Id In Number) Return Number Is
- v_Num Number;
- Begin
- Select Count(*)
- Into v_Num
- From Sample_Con_Sta_No Cs
- Where Cs.Deleted_Flag = 0 And (Cs.In_Out_Group_Status != '1' And Cs.In_Out_Group_Status != '2') And
- Cs.Con_Id In
- (Select Con_Id
- From Sample_Ent_Con Ec
- Where Ec.Ent_Id In
- (Select Ent_Id From Sample_Ent_Con Ecc Where Ecc.Con_Id = v_Con_Id));
- If v_Num > 0 Then
- Return 0;
- Else
- Return 1;
- End If;
- End Func_Is_All_Con_In;
本文转自zylhsy 51CTO博客,原文链接:http://blog.51cto.com/yunlongzheng/423689,如需转载请自行联系原作者