Question

在SQL Server 2008中，如何获取表列表的行计数？

我有一个数据库，我希望获得以＆＃39; BB＆＃39;

开头的所有表格的行数

我尝试了多种变体：

CREATE TABLE #RowCounts(NumberOfRows BIGINT, TableName VARCHAR(128))

EXEC sp_MSforeachtable 'INSERT INTO #RowCounts 
                        SELECT COUNT_BIG(*) AS NumberOfRows, 
                        ''?'' AS TableName FROM ?'

SELECT TableName, NumberOfRows
FROM #RowCounts 
ORDER BY NumberOfRows DESC, TableName

DROP TABLE #RowCounts

投掷''?'' AS TableName FROM ? WHERE ? LIKE 'BB%'等内容和''?'' AS TableName FROM ? WHERE ''?'' LIKE 'BB%'

我确信必须有办法做到这一点。如果您可以获取所有表的行数，那么应该能够为某些表获取它...对吗？

Answer 1

尝试使用sys.dm_db_partition_stats DMV ..

$(":checkbox").change(function() {
    var dataset3 = dataset.filter(function(el) {
        var checkboxes = document.getElementsByName('result');
        var index = 0;
        var found = false;
        while (index < checkboxes.length && !found) {
            if (checkboxes[index].checked && el[0] == checkboxes[index].value) found=true;
            ++index;
        }
        return found;
    });

    document.getElementById("demo3").innerHTML = dataset3;
});

当您有大量插入，删除和立即检查计数时，这可能不够准确（偏差很小）..

如果您一直在使用sp_msforeach ..

  select 
object_name(object_id) as tablename,sum(row_count) as totalrows
 from sys.dm_db_partition_stats
 where object_name(object_id) like 'Bb%'--gives tables count which start with bb*
 group by object_id

<强>参考文献：
How to fetch the row count for all tables in a SQL SERVER database

Answer 2

如果数据库包含堆或集群索引表，那么我将使用以下方法之一：

1）sys.partitions.rows

SELECT s.name as schema_name, t.name as table_name, SUM(p.rows) AS SumOfRows
FROM sys.schemas s
JOIN sys.tables t ON s.schema_id = t.schema_id
JOIN sys.partitions p ON p.object_id = t.object_id
WHERE s.name = N'dbo' AND t.name LIKE N'BB%'
GROUP BY s.name, t.name

但rows列不准确（根据MSDN）。

2）或者，如果我想要准确的数字，那么我会使用COUNT(*)因此

DECLARE @SqlStatement NVARCHAR(MAX) = N''

SELECT @SqlStatement = 
    @SqlStatement 
    + N' UNION ALL SELECT '
    + '''' + full_name + ''''
    + N' AS full_name, COUNT(*) AS row_count FROM ' + full_name
FROM (
    SELECT QUOTENAME(s.name) + N'.' + QUOTENAME(t.name) AS full_name
    FROM sys.schemas s
    JOIN sys.tables t ON s.schema_id = t.schema_id
    WHERE s.name = N'dbo' AND t.name LIKE N'BB%'
) s

SET @SqlStatement = STUFF(@SqlStatement, 1, 10, N'')    

EXEC sp_executesql @SqlStatement

获取表列表的行数

2 个答案: