[英]SQL query inside a SQL Script
I have a SQL script, which spools data to a file. 我有一个SQL脚本,它将数据后台处理到文件中。 Sample Existing SQL script: 现有的示例SQL脚本:
whenever sqlerror exit failure rollback
spool test.txt
set serveroutput on
select * from emp;
spool off
/
But, I would like to write a SQL query in this script before spooling data. 但是,我想在后台处理数据之前在此脚本中编写一个SQL查询。 I don't want to hardcode the name of the spooling file, so how could I get the file name from a table or lookup? 我不想对假脱机文件的名称进行硬编码,那么如何从表或查找中获取文件名?
I want the code to be something like 我希望代码像
var filename varchar2(30);
select fname into :filename from table where script = 'abcscript';
spool :filename
set serveroutput on
select * from emp;
spool off
/
Thanks. 谢谢。
COLUMN spool_file_name NEW_VALUE.spool_file_name NOPRINT
select fname spool_file_name
from table where script = 'abcscript';
SPOOL &spool_file_name
SET ECHO ON
select * from emp ;
SPOOL OFF
COLUMN spool_file_name CLEAR
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