How to Execute DDL sql script depends on user input in Oracle DB

Question

there is two DDL script "s1.sql" and "s2.sql" , depends on user input any one of these script should be executed.

please suggest me.

Answer 1

To do a conditional branching , you could use a SQL*Plus variable to take user input. Using DECODE to identify which script needs to be executed based on the user's input.

For example, let's say you have two scripts s1.sql and s2.sql . You want to decide which script to execute based on user input. If user inputs s1 then execute s1.sql else execute s2.sql .

Test case

SQL> variable condition varchar2(20);
SQL> exec :condition := 's1';

PL/SQL procedure successfully completed.

SQL> column which_script new_value this_script
SQL> SELECT DECODE(:condition, 's1', 'D:\s1.sql', 'D:\s2.sql') which_script
  2  FROM dual;

WHICH_SCR
---------
D:\s1.sql

SQL>

So, now you know which script to be executed.

Answer 2

Try this:

ACCEPT FILE_NAME PROMPT 'Enter S1 or S2 :'
@ FILE_NAME

It will ask you for the S1 or S2 and after input in the value it will execute the script through @ and don't worry about the .sql extension it will added by default.