介绍
统计多个 SQL Server 实例上多个数据库的表大小、最后修改时间和行数，可以使用以下的 SQL 查询来获取这些信息。
脚本
示例脚本：
DECLARE @Query NVARCHAR(MAX)-- 创建一个临时表用于存储结果
CREATE TABLE #TableSizes
(DatabaseName NVARCHAR(255),SchemaName NVARCHAR(255),TableName NVARCHAR(255),RowCount BIGINT,TotalSpaceUsedMB DECIMAL(18,2),LastModifiedDateTime DATETIME
)-- 构建动态SQL查询
SET @Query = ''-- 获取数据库列表
SELECT @Query = @Query + 'USE [' + name + ']; ' +'INSERT INTO #TableSizes ' +'SELECT ' + QUOTENAME(name, '''') + ' AS DatabaseName, ' +'SCHEMA_NAME(schema_id) AS SchemaName, ' +'t.name AS TableName, ' +'SUM(p.rows) AS RowCount, ' +'CONVERT(DECIMAL(18,2), SUM(a.total_pages) * 8 / 1024.0) AS TotalSpaceUsedMB, ' +'MAX(last_user_update) AS LastModifiedDateTime ' +'FROM ' + QUOTENAME(name) + '.sys.tables t ' +'INNER JOIN ' + QUOTENAME(name) + '.sys.indexes i ON t.object_id = i.object_id ' +'INNER JOIN ' + QUOTENAME(name) + '.sys.partitions p ON i.object_id = p.object_id AND i.index_id = p.index_id ' +'INNER JOIN ' + QUOTENAME(name) + '.sys.allocation_units a ON p.partition_id = a.container_id ' +'WHERE t.is_ms_shipped = 0 ' +'GROUP BY t.name, SCHEMA_NAME(schema_id); '
FROM sys.databases
WHERE database_id > 4 -- Exclude system databases-- 执行查询
EXEC sp_executesql @Query-- 查询结果
SELECT * FROM #TableSizes-- 删除临时表
DROP TABLE #TableSizes
Ending
