如果表为空，则选择表的名称

Question

我有表名和表...

我只需要选择那些空的表。

为此，我试着写CURSOR。

DECLARE @Footprint VARCHAR(200) 
DECLARE @query VARCHAR(200) 
DECLARE MY_CURSOR CURSOR 
    LOCAL STATIC READ_ONLY FORWARD_ONLY 
FOR 
SELECT '[' + [SchemaName] + '].[FootprintBuildState]' 
FROM [dbo].[vwAgencySchemas] 

OPEN MY_CURSOR 
FETCH NEXT FROM MY_CURSOR INTO @Footprint 
WHILE @@FETCH_STATUS = 0 
BEGIN 
    --CHECK IF Table IS EMPTY (UNCORRECT) 
    SET @query = 'SELECT ' + @Footprint + ' FROM ' + @Footprint + ' WHERE NOT EXISTS (SELECT * FROM ' + @Footprint+ ') ' 
    EXEC (@query) 
    FETCH NEXT FROM MY_CURSOR INTO @Footprint 
END 
CLOSE MY_CURSOR 
DEALLOCATE MY_CURSOR 

这是我，但我不能写正确的查询选择空表的名称

我得到错误

消息105，级别15，状态1，行1
字符串'_test12345678910111213141'后面未加上引号。

Msg 102，Level 15，State 1，Line 1
'_test12345678910111213141'附近的语法不正确。

Answer 1

甭想光标 - 你可以很容易地与只是一个简单的，单一的SELECT语句做到这一点 - 是这样的：

SELECT 
    t.NAME AS TableName, 
    p.rows AS RowCounts 
FROM 
    sys.tables t 
INNER JOIN  
    sys.indexes i ON t.OBJECT_ID = i.object_id 
INNER JOIN 
    sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id 
INNER JOIN 
    dbo.YourNamesTable tbl ON t.Name = tbl.TableName 
WHERE 
    p.Rows = 0 
GROUP BY 
    t.Name, p.Rows 
ORDER BY 
    t.Name