SQL database in Microsoft Fabric Removes one or more rows from a table or view in SQL Server. Transact-SQL syntax conventions Syntax syntaxsqlCopy -- Syntax for SQL Server and Azure SQL Database[WITH<common_table_expression>[ ,...n ] ]DELETE[TOP( expression ) [PERCENT] ] [FROM] { {...
SQL 复制 DELETE Production.ProductCostHistory WHERE StandardCost BETWEEN 12.00 AND 14.00 AND EndDate IS NULL; PRINT 'Number of rows deleted is ' + CAST(@@ROWCOUNT as char(3)); C. 使用游标以确定要删除的行以下示例使用名为 complex_cursor 的游标删除 AdventureWorks2022 数据库的 EmployeePay...
SQL DELETEProduction.ProductCostHistoryWHEREStandardCostBETWEEN12.00AND14.00ANDEndDateISNULL; PRINT 'Number of rows deleted is ' + CAST(@@ROWCOUNT as char(3)); C. 使用資料指標來判斷要刪除的資料列 下列範例會使用名為complex_cursor的數據指標,從EmployeePayHistoryAdventureWorks2022 資料庫中的數據表中刪除...
接下来,我们可以使用以下代码来查看已删除的数据: -- 使用系统函数和视图查看已删除的数据SELECT[CurrentLSN],[TransactionID],[BeginTime],[EndTime],[TransactionName],[TransactionSID]FROMsys.fn_dblog(NULL,NULL)WHERE[Operation]='LOP_DELETE_ROWS'AND[AllocUnitName]='dbo.TestTable' 1. 2. 3. 4. 5....
The first idea is to get all rows from table and use alter rows to delete the rows where modifield date field is between min and max date. But I assume it can takes so long time. The best idea in my opinion is to run a sql query like "delete from table where mod...
-- 开始一个事务BEGINTRANSACTION;-- 假设执行了误删除操作DELETEFROMemployeesWHEREid=1;-- 查看日志中的操作记录SELECT*FROMfn_dblog(NULL,NULL)WHEREOperation='LOP_DELETE_ROWS';-- 如果确认要撤销,则可以进行回滚ROLLBACKTRANSACTION; 1. 2. 3.
IF @@ROWCOUNT = 0 PRINT 'Warning: No rows were inserted'; GO SELECT DeletedProductID, RemovedOnDate FROM Production.ZeroInventory;二、使用OUTPUT子句的注意事项:以下语句中不支持 OUTPUT 子句:引用本地分区视图、分布式分区视图或远程表的 DML 语句。 包含EXECUTE 语句的 INSERT 语句。 不能将 OUTPUT INT...
SELECT*FROMCustomers FETCHFIRST3ROWSONLY; 使用旧版 Oracle 的 ROWNUM 以下SQL 语句展示了旧版 Oracle 的等效示例: 选择"Customers" 表的前 3 条记录: SELECT*FROMCustomers WHEREROWNUM<=3; 添加WHERE 子句 以下SQL 语句从 "Customers" 表中选择前三条记录,其中国家是 "Germany"(对于 SQL Server/MS Access)...
Can't add datetime column with default value in SQL Server 2005 Can't change the currente collate of my database Can't copy the result of a query? Can't declare table parameter as input to stored procedure Can't delete rows from Mgt Studio view Can't Enable Foreign Key Constraint (Ms...
代码语言:sql 复制 SELECT * FROM Customers WHERE Country='Germany' FETCH FIRST 3 ROWS ONLY; 添加ORDER BY 关键字 在要对结果进行排序并返回排序后结果的前 3 条记录时,添加 ORDER BY 关键字。 对于SQL Server 和 MS Access: 代码语言:sql 复制 按CustomerName 字母降序排序结果,并返回前 3 条记录: SEL...