// 使用 C# 代码输出统计结果foreach(stringdatabaseNameindatabases){SqlCommandtableCountCommand=newSqlCommand($"SELECT COUNT(*) FROM{databaseName}.sys.tables",connection);inttableCount=(int)tableCountCommand.ExecuteScalar();Console.WriteLine($"Database:{databaseName}, Table Count:{tableCount}");} ...
WHERE Objectproperty(tables.object_id, N'TableHasClustIndex') = 0 )t where numberofrows is not null 查看表数据行数 但这种办法不是实时的,是sql server定时做的统计操作,执行下面代码可进一步精确 DBCC UpdateUSAGE(DatabaseName,[TABLENAME])WITH ROW_COUNTS...
Connection);DataSetdataset=newDataSet();adapter.Fill(dataset);Close();if(dataset.Tables[0].Rows.Count>0){returntrue;}else{returnfalse;}}//公有方法,返回Sql语句获得的数据值//SqlString的格式:select count(*) from XXX where ...// select max(XXX)...
SQL Server has encountered %d occurrence(s) of cachestore flush for the '%s' cachestore (part of plan cache) due to some database maintenance or reconfigure operations.重新編譯執行計畫資料庫的特定變更可能會導致執行計畫沒有效率或無效,端視資料庫的新狀態而定。 SQL Server 會偵測讓執行計畫失效的...
在开始之前,我们需要确保已经连接到 SQL Server 数据库。以下是连接数据库的示例代码: USE[YourDatabaseName];GO 1. 2. 这条代码的作用是指定我们接下来操作的数据库。 步骤2:查询表信息 接下来,我们需要获取表的基本信息。使用以下 SQL 查询语句:
SQL Server 中统计各用户表记录条数 的两种方法 最近做数据监控遇到这么个查询需求,就从系统存储过程[sys].[sp_tables]中征用了遍历用户表的代码,组织一下,配合以MSSQL 中的表变量,写了如下代码: 方法一: DECLARE@NAMEVARCHAR(50) DECLARE@SQLVARCHAR(1000) ...
active transactions, run these commands:'ASRecommendation;SELECT'DBCC OPENTRAN ('+QUOTENAME(@dbname) +')'ASFindOpenTran;SELECT'SELECT database_id, db_name(database_id) AS dbname, database_transaction_begin_time, database_transaction_state, database_transaction_log_record_count, ...
active transactions, run these commands:'ASRecommendation;SELECT'DBCC OPENTRAN ('+QUOTENAME(@dbname) +')'ASFindOpenTran;SELECT'SELECT database_id, db_name(database_id) AS dbname, database_transaction_begin_time, database_transaction_state, database_transaction_log_record_count, database_...
Applies to: Azure SQL Database, Azure SQL Managed Instance, and starting with SQL Server 2022 (16.x) In SQL Server prior to SQL Server 2022 (16.x), if statistics are manually created by a user or third party tool on a user database, those statistics objects can block or interfere wit...
SUM (version_store_reserved_page_count)*8 as version_store_kb, SUM (unallocated_extent_page_count)*8 as freespace_kb From sys.dm_db_file_space_usage Where database_id = 2 这个命令可以查看到当前tempdb的空间开销 如果是user objects占用多,就要考虑下是否使用了大量的临时表,表变量等自建对象。