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There are a several ways of declaring variables in SQL*Plus scripts. The first is to use VAR, to declare a bind variable. The mechanism for assigning values to a VAR is with an EXEC call: SQL> var name varchar2(20) SQL> exec :name := 'SALES' PL/SQL procedure successfully completed.
declare v_username varchare(20); SELECT username into v_username FROM users WHERE user_id = '7'; this will store the value of a single record into the variable v_username. For storing multiple rows output into a variable from the select into query :
15 wrz 2014 · I come from an SQL Server background and I'm trying to figure out how to use Oracle PL/SQL variables. I'm trying to declare a variable and then select that variable. It sounds simple, but I am doing something wrong. Here's my code: declare num number; begin num := 64; select num from dual; --error here end; /
5 lip 2011 · This worked for me in Toad for Oracle when using any of these functions: Execute as script or Execute via Toad script runner or Execute via SQL*Plus. However, if you try running with the Execute/compile statement at caret it returns an error message: "ORA-009000: invalid SQL statement".
Declaring variables. The syntax for a variable declaration is as follows: variable_name datatype [NOT NULL] [:= initial_value]; Code language: PostgreSQL SQL dialect and PL/pgSQL (pgsql) In this syntax: First, specify the name of the variable.
22 lut 2023 · What I had done simply is to declare a variable for the hardcoded valued. like lv_var varchar2:='hardcoded value' and then substitued this variable for the hardcoded value in the queries as shown above. I have done this for all such occurences of hardcoded values in sql's.
2 lut 2011 · How do I declare a variable of type DATE in SQL*Plus? All I see is CHAR/NCHAR, VARCHAR2/NVARCHAR2, CLOB/NCLOB, REFCURSOR, NUMBER, BINARY_FLOAT and BINARY_DOUBLE. you cannot - you would use a string and then always use TO_DATE on it when you reference it in a query.
