Declare Local Variables in Oracle

Q

How To Declare a Local Variable in Oracle?

✍: FYIcenter.com

A

A local variable can be defined in the declaration part with a declaration statement, which is a variable name followed a data type identifier. Below are some examples of declaration statements:

PROCEDURE proc_var_1 AS
  domain VARCHAR2(80);
  price REAL;
  is_for_sale CHAR;
BEGIN
  -- Executable statements
END;

⇒ Initialize Variables with Default Values in Oracle

⇐ PL/SQL Functions in Oracle

⇑ Understanding PL/SQL Language Basics

⇑⇑ Oracle Database Tutorials

2018-11-17, 4413🔥, 0💬

Initialize Variables with Default Values in Oracle
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PL/SQL Anonymous Block in Oracle
What Is an Anonymous Block in Oracle? An anonymous block is a PL/SQL code block with no name. It consists of three parts: Declaration Part - Defining local variables and local procedures. Declaration part is optional. Execution Part - Defining execution logic with executable statements. Execution pa... 2018-11-29, 3425🔥, 0💬

PL/SQL Named Program Unit in Oracle
What Is a Named Program Unit in Oracle? 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 required. Execution Part - Defining execution... 2018-11-29, 3218🔥, 0💬

Different Types of PL/SQL Code Blocks in Oracle
What Are the Different Types of PL/SQL Code Blocks in Oracle? There are 3 types of PL/SQL code blocks: Anonymous Block - A block of codes with no name. It may contain a declaration part, an execution part, and exception handlers. Stored Program Unit - A block of codes with a name. It is similar to a... 2018-11-29, 3191🔥, 0💬

PL/SQL Functions in Oracle
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Logical Operations in PL/SQL in Oracle
What Are the Logical Operations in Oracle? 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; -- more statements END; ⇒ Categories of Data Typ... 2018-08-06, 3123🔥, 0💬

Arithmetic Operations in Pl/SQL in Oracle
What Are the Arithmetic Operations in Oracle? 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; BEGIN addition := 7 + 8; subtraction := addition ... 2018-08-06, 3059🔥, 0💬

Numeric Comparison Operations in Oracle
What Are the Numeric Comparison Operations in Oracle? 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; res := 1 >= 2; res... 2018-08-06, 3032🔥, 0💬

PL/SQL Procedure in Oracle
What Is a Procedure in Oracle? 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 - Defining execution logic with executable statements... 2018-11-29, 3008🔥, 0💬

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