When running SQLPLUS, you often need to set up the running environment. If you need to adjust the parameters every time you enter, you can use the glogin.sql provided by Oracle, and the two files of Login.SQL are initialized to SQLPLUS.

Two scripts are automatically performed each time SQLPLUS: Glogin.sql, Login.SQL These two files.

SQLPLUS is:

1. Default in the $ ORACLE_HOME / SQLPLUS / Admin path to find the Glogin.sql file execution;

 2. By default, look up the login.sql file under the current path, if the corresponding file is not found;

 3. Determine if the SQLPath environment variable is set, if the variable is set, find and execute under the corresponding path, and stop finding.

The following configuration example is performed at Oracle 11G:

View $ Oracle_Home / Sqlplus / Admin path Is there Is a Glogin.sql file?

You can set an environment variable SQLPath to facilitate use in any directory.

Set the SQLPath environment variable in the current user's profile file

export SQLPATH=$ORACLE_HOME/sqlplus/admin:$SQLPATH

Add our own login.sql file under the default path, the following configuration is recommended for common configuration

- Set the SQLPLUS Default Editor for VI
define _editor=vi
 - Open DBMA_OUTPUT by default, so you don't have to enter this command each time, and you will set the default buffer pool as big as possible.
set serveroutput on size 1000000
 - When the text is output, the space between the text line is removed, and the line width is uncertain. If set to OFF (default setting), the text line width of the spooled output is equal to the set LineSize
set trimspool on
 - Set the number of default bytes displayed when choosing long and clobs
set long 5000
 - Set the text width of the display to 300 characters
set linesize 300
 - Set how long it is printed once, set this parameter, only the title per page is displayed.
set pagesize 9999
 - Set AutoTrace to get the default width of the plan output, usually 80 enough to put down the entire plan
column plan_plus_exp format a80
 - Set the SQLPLUS prompt, display format is user @ database name
set sqlprompt '&_user.@&_connect_identifier.> '

It is recommended to configure the SQLPLUS prompt display format when operating the database, prevent an operation error.

The effect after the configuration is as follows:

After you can see the login database, SQLPLUS has been set according to the corresponding display format according to the Login.sql file.