Run the commands in an SQL script. The script may contain SQL commands, PL/SQL blocks, and SQL*Plus commands.
By default SQL*Plus will assume the file has a .SQL extension.
To run SS64.SQL:
SQL> START SS64
Run SQL*Plus and start an SQL script:
SQL> SQLPLUS Username/ @SS64.sql
SQL> SQLPLUS @SS64.sql Include your username as the first line of the .sql file.
SQL> SQLPLUS @SS64.sql /nolog Include a connect statement as the first line of the file.
When SQL*Plus starts, it will prompt for your password and will run the script, note that embedding a password in the script may be a security risk.
To run a series of scripts in sequence, first create a script containing several START commands, each followed by the name of a script in the sequence. Then run the script containing the START commands. For example, you could include the following START commands in a script named UPGRADE.sql:
@@File_name will also run a script, this is almost identical to @File_name the difference being that @@ looks for nested scripts in the same path or url as the calling script.
Substitution Variables in SQL*Plus
Enter your script using & and && as the prefix for variables.
SQL> @MyScript.sql parameter1 parameter2 parameter3 or
SQL> START MyScript.sql parameter1 parameter2 parameter3 In the SQL-Script, refer to the parameters as &1 &2 &3
For example @MyScript.sql 1234 FinanceDept
Substitution variables may be used anywhere in SQL and SQL*Plus commands, except as the first word entered.
If you wish to append characters (other than a space) immediately after a substitution variable, use a period to separate the variable from the character.
For example WHERE PART_ID='&A.64' now if &A is set to 100 the expression becomes WHERE PART_ID='10064' (see also SET CONCAT)
When SQL*Plus encounters an undefined substitution variable it will prompt you for the value. With single ampersand substitution variables (&B) you are prompted to substitute a value for each occurrence of that substitution variable, so if the undefined variable is used 10 times in the script you will get 10 prompts.
Double ampersand substitution variables (&&C) will remain defined. You will not be prompted to enter values for those variables again until they have been undefined, or you log out of SQL*Plus.
To customise the substitution prompt use ACCEPT like this: ACCEPT ss64 NUMBER PROMPT 'Enter the code number:' This will create the variable &ss64
If you use DEFINE to define variables in a script, the defined values will take precedence.
If you enter a substitution value at the prompt, SQL*Plus will list the line with and without your substituted value. You can suppress this with SET VERIFY OFF.
SET DEFINE - Define the substitution character (by default the ampersand "&") and turn substitution on and off.
SET ESCAPE - Define an escape character you can use before the substitution character. ignore variable substitution. default =\
SET NUMFORMAT - Set the default format for displaying numbers, including numeric substitution variables.
SET NUMWIDTH - Set the default width for displaying numbers, including numeric substitution variables.
Editing SQL scripts in SQL*Plus
CONNECT - Connect to a database instance.
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