DECLARE @transactionDate AS date='2023-07-04';

DECLARE @TestVariable AS VARCHAR(100)='Save Our Planet';

PRINT @TestVariable;

PRINT @transactionDate;

DECLARE @TableVariable TABLE (Id INT)

​

INSERT INTO @TableVariable

SELECT Id

FROM TableName

WHERE....

​

SELECT *

FROM TableName

WHERE Id IN ( SELECT Id FROM @TableVariable)

DECLARE @TABLE TABLE( COL1 INT, COL2 VARCHAR(30))

DECLARE @datecurrent datetime2

set @datecurrent = CAST(getdate() AS smalldatetime)

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

​

DECLARE  { @LOCAL_VARIABLE[AS] data_type  [ = value ] }