Oracle SQL - SQL Plus Script

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Introduction

To undo all column formatting, the command is: 

CLEAR COLUMNS

A script is a text file that is stored in the operating system in the C:/Oracle .../bin directory (Windows) and run with a START command.

In the text file, we can include the COLUMN format, the statement, and then a CLEAR COLUMNS command.

As an example, suppose we have such a script called myscript.txt and it contains the following:

Demo

COLUMN orig_salary FORMAT $990.99 
SELECT empno, ename, 
  orig_salary, -- from ww w.j  a v a 2s .  c om
  curr_salary 
FROM employee; 
CLEAR COLUMNS

This script presupposes nothing about the formatting of orig_salary, and after it is run, the formatting is not persistent.

The script is executed like this: 

START myscript.txt

or 

@myscript.txt

from the SQL> command line.

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