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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.
In SQL Server we can use this: DECLARE @variable INT; SELECT @variable= mycolumn from myTable; How can I do the same in Oracle? I'm currently attempting the following: DECLARE COMPID VARCHAR2(20); SELECT companyid INTO COMPID from app where appid='90' and rownum=1; Why this is not working?
5 lip 2011 · I'm trying to use a variable in Oracle PL/SQL, but I'm getting an error. What's wrong here?
This chapter explains how SQL*Plus substitution variables work and where they can be used. It shows the relationship between the three types of variables (substitution, bind, and system) used in SQL*Plus. This topics covered are: Defining Substitution Variables
19 wrz 2022 · In this tutorial we will review the different ways to declare and use variables and placeholders in SQL Server, Oracle and PostgreSQL. We will also see the various differences in syntax and logic as well as types of variables for various SQL databases.
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.
11 kwi 2011 · Christopher Jones. Senior Principal Product Manager. This post shows how substitution variables can replace hard-coded text in Oracle SQL and SQL*Plus statements.
