從WHERE語句中取出幾個'userID並放入變量中

Question

我有以下查詢可以正常工作。

SELECT ui.userID, 
    ui.lockedInd, 
    ui.lockedBy, 
    ui.lockedReason, 
    ui.updatedDtTm, 
    ui.updatedBy, 
    ua.password, 
    ua.updatedDtTm, 
    ua.updatedBy 
FROM userInfo ui 
JOIN userAuthentication ua 
    ON ui.userinfoseqid = ua.userinfoseqid 
WHERE ui.userID IN (
    'userOne', 
    'userTwo' 
) 

我想把用戶名放入頂部聲明的變量中。我有點困惑如何創建變量並添加到它，因爲我總是隻做一個值的變量。 Sudo代碼如下

DECLARE @userIDs 
SET @userIDs = "'userOne', 'userTwo'" 

SELECT ui.userID, 
    ui.lockedInd, 
    ui.lockedBy, 
    ui.lockedReason, 
    ui.updatedDtTm, 
    ui.updatedBy, 
    ua.password, 
    ua.updatedDtTm, 
    ua.updatedBy 
FROM userInfo ui 
JOIN userAuthentication ua 
    ON ui.userinfoseqid = ua.userinfoseqid 
WHERE ui.userID = @userIDs 

Answer 1

您可以使用一個臨時表中，有更多的信息：http://www.simple-talk.com/sql/t-sql-programming/temporary-tables-in-sql-server/

例如，創建一個表變量：

DECLARE @UserIDs TABLE (ID nvarchar(50)) 
INSERT INTO @UserIDs VALUES ('userOne'), ('userTwo') 

SELECT ui.userID 
FROM userInfo ui 
JOIN userAuthentication ua 
    ON ui.userinfoseqid = ua.userinfoseqid 
WHERE ui.userID IN (SELECT ID FROM @UserIDs) 

Answer 2

使用表變量應該適合您。

DECLARE @UserIDS TABLE 
(
    UserId VARCHAR(40) 
) 

INSERT INTO @UserIDS 
(
UserId 
) 
SELECT 'UserOne' 
UNION ALL SELECT 'UserTwo' 
UNION ALL SELECT 'UserThree' 

SELECT ui.userID, 
    ui.lockedInd, 
    ui.lockedBy, 
    ui.lockedReason, 
    ui.updatedDtTm, 
    ui.updatedBy, 
    ua.password, 
    ua.updatedDtTm, 
    ua.updatedBy 
FROM userInfo ui 
JOIN userAuthentication ua 
    ON ui.userinfoseqid = ua.userinfoseqid 
WHERE ui.userID IN @UserIDS