#########sample 0

---如何在 PL/SQL Block 端查看执行的SQL.

The SQL statement within the PL/SQL block is actually stored separately, but you cannot see it because:

• every sql statement in a PL/SQL block is stored as capital letters
• every comment and INTO clause are removed
• 因为pl/sql 每个块都是封装的,PL/SQL 块中的每个 sql 语句都存储为大写字母,所以查看PL/SQL 代码可以小写。
•  但是在查询V$SQL 我们应该去掉into 选项，并且要所有字母要大写

How to Determine the SQL_ID of a SQL Statement in a PL/SQL Block

 

 

OLUTION

If you have a PL/SQL block such as:

declare v1 number; 

begin 

  select /* SimpleTest */ sum(sal) into v1 from emp; 

end; 

/

Then if you try to find the SQL_ID from v$sql then you will see the SQL_ID of the PL/SQL block NOT the SQL itself:

SQL> select sql_id, sql_text from v$sql where sql_text like '%SimpleTest%';SQL_ID        SQL_TEXT------------- ----------------------------------------------------------------------------------77hjjr9qgwtzm declare v1 number; begin select /* SimpleTest */ sum(sal) into v1 from emp; end;

The SQL statement within the PL/SQL block is actually stored separately, but you cannot see it because:

• every sql statement in a PL/SQL block is stored as capital letters
• every comment and INTO clause are removed
• 因为pl/sql 每个块都是封装的
• 但是在V$SQL 我们应该去掉into 选项

Note that optimizer hints are preserved.

In other words,

select /* SimpleTest */ sum(sal) into v1 from emp

is stored as

SELECT SUM(SAL) FROM EMP

In order to find it's SQL_ID you would need to search on something similar to the following:

SQL> select sql_id, sql_text from v$sql where sql_text like '%SUM(SAL)%EMP%';SQL_ID        SQL_TEXT------------- -------------------------------5mqhh85sm278a SELECT SUM(SAL) FROM EMP

The SQL_ID can also be determined by using the hash_value from a SQL_TRACE. The hash value can be seen in the raw trace file identified by the "hv=" string.

.................................................PARSING IN CURSOR #1 len=24 dep=1 uid=54 oct=3 lid=54 tim=1194298465705687 hv=1899044106 ad='997aa660' SELECT SUM(SAL) FROM EMPEND OF STMT..................

In this case the hash value is 1899044106. To find the SQL_ID using the hash value use the following select:

SQL> SELECT sql_id, hash_value, SUBSTR(sql_text,1,40) TextFROM v$sqlWHERE  hash_value = &Hash_Value; SQL_ID        HASH_VALUE SQL_TEXT------------- ---------- -------------------------------5mqhh85sm278a 1899044106 SELECT SUM(SAL) FROM EMP

 

 

 

####sample 1

https://www.askmaclean.com/archives/vsqlcommand-sql-opcodes-and-names.html

ash 报告显示 代表都是存储过程封装好的SQL.

V$SQLCOMMAND SQL opcodes and names

47 PL/SQL EXECUTE ash 报告显示 代表都是存储过程封装好的SQL. 因此无法通过AWR和ASH 报告看出， 因此需要进一步查看里面的查询 有2个方法， 方法1：使用PL/SQL developer 查看源代码，争取从源代码中找到相关的SQL语句以及表，当然这个比较麻烦，具体可以查看sample 2 方法2： 通过方法1 查找到的表，进一步需要通过V$sql进一步查看， 查找到SQL,在根据执行次数排序，排序越在前的SQL语句就越可能是关键语句。

select * from v$sql where sql_text like '%TRAN_AMT%'

 

###sample 2

https://blog.csdn.net/sinat_35512702/article/details/80937840

->通过在PLSQL Developer 中查看存储过程源码

https://blog.csdn.net/sinat_35512702/article/details/80937840

->.在Package bobodies 中找到存储过程所在的包名，比如TOOL，右键，选择Edit Spec & Body

->.如下图操作，在存储过程名上按住CTRL键  + 右键双击

 

1.在Package bobodies 中找到存储过程所在的包名，比如TOOL，右键，选择Edit Spec & Body

  

2.找到你要查看的存储过程，点击一下

3.如下图操作，在存储过程名上按住CTRL键  + 右键双击

4.该存储过程源码就可以看见了

 

 

 

 

 

##########sample 3:

https://blog.csdn.net/zjxbllg2008/article/details/82380812

手工查看存储过程的包含的关键字

oracle

##for

select * from all_source t where type = 'PROCEDURE' and text like '%mainacc%'

select * from all_source t where type = 'FUNCTION' and text like '%mainacc%'

select * from all_source t where type = 'PACKAGE BODY' and text like '%mainacc%'

 

查找存储过程

1	select t.name,t.text from all_source t where type = 'PROCEDURE' and text like '%var_app_1_pst%'

查找函数

1	select t.name,t.text from all_source t where type = 'FUNCTION' and text like '%var_app_1_pst%'

MSSQL

1 2 3 4

select b.name from 数据库名.dbo.syscomments a, 数据库名.dbo.sysobjects b where a.id=b.id  and b.xtype='p' and a.text like '%key words%' order by name

 

Oracle中，如果关键字是一张表的话，还可以通过表的Referenced by属性找到相关的函数、存储过程和触发器等。

如：

MSSQL类似。

 

oracle数据库中如何查看已经创建的索引信息

1. 根据表名，查询一张表的索引

1	select * from user_indexes where table_name=upper('表名');

2. 根据索引号，查询表索引字段

1	select * from user_ind_columns where index_name=('索引名');

3.根据索引名，查询创建索引的语句

1	select dbms_metadata.get_ddl('INDEX','索引名', ['用户名']) from dual ; --['用户名']可省，默认为登录用户

PS：dbms_metadata.get_ddl还可以得到建表语句，如：

1 2	SELECT DBMS_METADATA.GET_DDL('TABLE','表名', ['用户名']) FROM DUAL ; //取单个表的建表语句，['用户名']可不输入，默认为登录用户 SELECT DBMS_METADATA.GET_DDL('TABLE',u.table_name) FROM USER_TABLES u; //取用户下所有表的建表语句

当然，也可以用 工具来查看相关的表的各种信息。