Answers for "sql declare"

sql declare variable

-- Declare the variable to be used.
DECLARE @MyCounter int;

-- Initialize the variable.
SET @MyCounter = 0;

declare variables sql

--      name         type               value
DECLARE @PersonId AS UNIQUEIDENTIFIER = 'ddb7bfff-9ce8-4651-6973-08d9a46c90b6'

what does declare do in sql

-- MySQL

DECLARE variable_name datatype(size) [DEFAULT default_value];
-- Declaring a variable without specifying a default value will result it
-- in being a null value.
-- Declare is what allows us to create a variable

how to declare a variable in sql

DECLARE @COURSE_ID AS INT, @COURSE_NAME VARCHAR (10);