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By default, a SELECT INTO statement must return only one row. Otherwise, PL/SQL raises the predefined exception TOO_MANY_ROWS and the values of the variables in the INTO clause are undefined. Make sure your WHERE clause is specific enough to only match one row. If no rows are returned, PL/SQL raises NO_DATA_FOUND.
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.
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".
Retrieving the Error Code and Error Message: SQLCODE and SQLERRM. In an exception handler, you can use the built-in functions SQLCODE and SQLERRM to find out which error occurred and to get the associated error message. For internal exceptions, SQLCODE returns the number of the Oracle error.
1 cze 2023 · Are you getting an ORA-06502 error message when working with Oracle SQL? Learn how to resolve it and what causes it in this article. Table of Contents. ORA-06502 Cause. ORA-06502 Solution. Solution 3: NOT NULL Variable. ORA-06502 character string buffer too small. ORA-06502: pl/sql: numeric or value error: null index table key value.
9 wrz 2024 · An arithmetic, numeric, string, conversion, or constraint error occurred. For example, this error occurs if you attempt to assign the value NULL to a variable declared NOT NULL, or if you attempt to assign an integer greater than 99 to a variable declared NUMBER(2).
