如何编写Shell脚本以将查询结果输出到文本文件

Question

I want to write a shell script that will have a SQL select query and will output a text file.

My server is Linux, database is oracle.

I connect to my database by:

putty- su - oracle
. .profile_1120_rdbms
sqlplus SYSTEM/SYADM
sql> here i write sql query

But i want my query to run from shell script, which run as root user.

I do not know which environments to set /do i need any drivers installed.

I have tried some pieces of code, but they give me sqlplus not found /invalid command . I am not able to connect to db.

Please suggest me if there is some other way... I just want to run my sql from some script and have output in some text file.

Answer 1

You can give sql*plus a script filename with @file --

sqlplus scott/tiger @query.sql

For outputting just the query results, I've used commands like these:

set echo off;
set feedback off;
set linesize 100;
set pagesize 0;
set sqlprompt '';
set trimspool on;
spool result.txt;

at the beginning to the query.sql file to suppress headings, prompts, etc.