Variabel untuk data datetime

Menulis Function dan Stored Procedure di SQL Server

Meghan Kwartler

IT Consultant

Loker

-- DECLARE variabel dan beri nilai awal
 DECLARE @StartTime as time = '08:00 AM'

-- DECLARE variabel lalu SET nilainya
DECLARE @StartTime AS time 
SET @StartTime = '08:00 AM'

-- DECLARE variabel lalu SET nilainya
DECLARE @BeginDate as date 
SET 
  @BeginDate = (
    SELECT TOP 1 PickupDate 
    FROM YellowTripData 
    ORDER BY PickupDate ASC
  );

CASTing

-- Sintaks CAST
CAST ( expression AS data_type [ ( length ) ] ) 
-- Mengembalikan expression sesuai data_type

-- DECLARE variabel datetime
-- SET nilai ke @BeginDate dan @StartTime sambil CAST
DECLARE @StartDateTime as datetime 
SET @StartDateTime = CAST(@BeginDate as datetime) + CAST(@StartTime as datetime)

-- DECLARE variabel tabel dengan dua kolom
DECLARE @TaxiRideDates TABLE(
    StartDate date,
    EndDate date)

-- INSERT nilai statis ke variabel tabel
INSERT INTO @TaxiRideDates (StartDate, EndDate)
SELECT '3/1/2018', '3/2/2018'

-- INSERT hasil kueri
INSERT INTO @TaxiRideDates(StartDate, EndDate)
SELECT DISTINCT
    CAST(PickupDate  as date), 
    CAST(DropOffDate  as date)
    FROM YellowTripData;

Giliran Anda: DECLARE, SET, CAST, & INSERT!

Menulis Function dan Stored Procedure di SQL Server