Если существует SQL Server
IF EXISTS (SELECT * FROM tblGLUserAccess WHERE GLUserName ='xxxxxxxx')
BEGIN
SELECT 1
END
ELSE
BEGIN
SELECT 2
END
Amused Angelfish
IF EXISTS (SELECT * FROM tblGLUserAccess WHERE GLUserName ='xxxxxxxx')
BEGIN
SELECT 1
END
ELSE
BEGIN
SELECT 2
ENDSELECT column_name(s)
FROM table_name
WHERE EXISTS
(SELECT column_name FROM table_name WHERE condition);SELECT customer_id, first_name
FROM Customers
WHERE EXISTS (
SELECT order_id
FROM Orders
WHERE Orders.customer_id = Customers.customer_id
);