how to declare the variable in sql server code example

Example 1: sql declare variable

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

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

Example 2: declare table variable sql server

DECLARE @table_variable_name TABLE (
    column_list
);

Example:
DECLARE @product_table TABLE (
    product_name VARCHAR(MAX) NOT NULL,
    brand_id INT NOT NULL,
    list_price DEC(11,2) NOT NULL
);

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