How To Assign Values to Variables

Q

How To Assign Values to Variables? - Oracle DBA FAQ - Understanding PL/SQL Language Basics

✍: FYIcenter.com

A

You can use assignment statements to assign values to variables. An assignment statement contains an assignment operator ":=", which takes the value specified on the right to the variable on left. The script below show you some examples of assignment statements:

PROCEDURE proc_var_2 AS
  is_done BOOLEAN;
  counter NUMBER := 0;
  message VARCHAR2(80); 
BEGIN
  is_done := FASLE;
  counter := counter + 1;
  message := 'Hello world!';
END;

2007-04-30, 5535👍, 0💬

How Many Categories of Data Types
How Many Categories of Data Types? - Oracle DBA FAQ - Understanding PL/SQL Language Basics PL/SQL data types are grouped into 4 categories: Scalar Data Types: A scalar data type holds a single value. Composite Data Types: A composite data type has internal components, such as the elements of an arra... 2007-04-30, 6038👍, 0💬

How To Initialize Variables with Default Values
How To Initialize Variables with Default Values? - Oracle DBA FAQ - Understanding PL/SQL Language Basics There are two ways to assign default values to variables at the time of declaration: Using key word DEFAULT - Appending "DEFAULT value" to the end of declaration statements. Using assignment oper... 2007-04-30, 5917👍, 0💬

What Are the Logical Operations
What Are the Logical Operations? - Oracle DBA FAQ - Understanding PL/SQL Language Basics PL/SQL supports 3 logical operations as shown in the following sample script: PROCEDURE proc_comparison AS x BOOLEAN := TRUE; y BOOLEAN := FALSE; res BOOLEAN; BEGIN res = x AND y; res = x OR y; res = NOT x; -- m... 2007-04-30, 5658👍, 0💬

What Is a Named Program Unit
What Is a Named Program Unit? - Oracle DBA FAQ - Understanding PL/SQL Language Basics A named program unit is a PL/SQL code block with an name. It consists of three parts: Declaration Part - Defining the program unit name, calling parameters, local variables and local procedures. Declaration part is... 2007-04-30, 5637👍, 0💬

What Is a Procedure
What Is a Procedure? - Oracle DBA FAQ - Understanding PL/SQL Language Basics A procedure is a named program unit. It consists of three parts: Declaration Part - Defining the procedure name, calling parameters, local variables and local procedures. Declaration part is required. Execution Part - Defin... 2007-04-30, 5581👍, 0💬

How To Assign Values to Variables
How To Assign Values to Variables? - Oracle DBA FAQ - Understanding PL/SQL Language Basics You can use assignment statements to assign values to variables. An assignment statement contains an assignment operator ":=", which takes the value specified on the right to the variable on left. The script b... 2007-04-30, 5536👍, 0💬

What Are the Arithmetic Operations
What Are the Arithmetic Operations? - Oracle DBA FAQ - Understanding PL/SQL Language Basics There are 4 basic arithmetic operations on numeric values as shown in the following sample script: PROCEDURE proc_arithmetic AS addition NUMBER; subtraction NUMBER; multiplication NUMBER; division NUMBER; BEG... 2007-04-30, 5446👍, 0💬

What Are the Numeric Comparison Operations
What Are the Numeric Comparison Operations? - Oracle DBA FAQ - Understanding PL/SQL Language Basics PL/SQL supports 6 basic numeric comparison operations as shown in the following sample script: PROCEDURE proc_comparison AS res BOOLEAN; BEGIN res := 1 = 2; res := 1 2; res := 1 = 2; res := 1 2; -- mo... 2007-04-30, 5394👍, 0💬

What Is a Function
What Is a Function? - Oracle DBA FAQ - Understanding PL/SQL Language Basics A function is a named program unit. It consists of three parts: Declaration Part - Defining the function name, calling parameters, return value type, local variables and local procedures. Declaration part is required. Execut... 2007-04-30, 5241👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.