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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);
5 lip 2011 · SQL*Plus supports an additional format: DEFINE StartDate = TO_DATE('2016-06-21'); DEFINE EndDate = TO_DATE('2016-06-30'); SELECT * FROM MyTable WHERE DateField BETWEEN &StartDate and &EndDate;
You can define variables, called substitution variables, for repeated use in a single script by using the SQL*Plus DEFINE command. Note that you can also define substitution variables to use in titles and to save your keystrokes (by defining a long string as the value for a variable with a short name).
This Oracle tutorial explains how to declare variables in Oracle / PLSQL with syntax and examples. In Oracle / PLSQL, a variable allows a programmer to store data temporarily during the execution of code.
Represents the CHAR value you wish to assign to variable. Enclose text in single quotes if it contains punctuation or blanks. variable = text. Defines (names) a substitution variable and assigns it a CHAR value. Enter DEFINE followed by variable to list the value and type of variable.
11 kwi 2011 · This document explains how SQL*Plus substitution variables work and where they can be used. It shows the relationship between the three types of variable (substitution, bind, and system) used in SQL*Plus. Substitution variables can replace SQL*Plus command options or other hard-coded text.
