Ciclo in TSQL
26-10-2023
Eseguire un ciclo sui valori di una tabella
TSQL
26-10-2023
Eseguire un ciclo sui valori di una tabella
DECLARE @T TABLE (
ID INT,
NOME VARCHAR(20)
)
CREATE TABLE #T_ID (
RowID int IDENTITY,
ID INT
)
INSERT INTO @T (ID, NOME) VALUES
(100, 'ANTONELLA'),
(200, 'ALBERTA'),
(300, 'ANDREA'),
(400, 'BEATRICE'),
(500, 'BOLOGNA'),
(600, 'BARI')
INSERT INTO #T_ID
SELECT ID FROM @T WHERE NOME LIKE 'AN%'
DECLARE @NumberRecords int, @RowCounter int
SELECT @NumberRecords = COUNT(*) FROM #T_ID
SET @RowCounter = 1
WHILE @RowCounter <= @NumberRecords
BEGIN
DECLARE @ID_CURRENT INT
SELECT @ID_CURRENT = ID FROM #T_ID WHERE RowID = @RowCounter
SELECT NOME FROM @T WHERE ID = @ID_CURRENT
SET @RowCounter = @RowCounter + 1
END