Cannot insert explicit value for identity column in table 'T1' when IDENTITY_INSERT is set to OFF. SET IDENTITY_INSERT T1 ON; # ON 可以覆写标识值 GO INSERT INTO T1 (column_1,column_2) VALUES (-99, 'Explicit identity value'); GO SELECT column_1, column_2 FROM T1; GO 但是,用命令...
You can insert values in user-defined type columns by: Supplying a value of the user-defined type. Supplying a value in a SQL Server system data type, as long as the user-defined type supports implicit or explicit conversion from that type. The following example shows how to insert a valu...
与持有较少限制性大容量更新 (BU) 锁的 BULK INSERT 语句不同,具有 TABLOCK 提示的 INSERT INTO … SELECT 语句持有一个针对表的排他 (X) 锁。 也就是说不能使用同时执行的多个插入操作插入行。 但是,从 SQL Server 2016 (13.x) 和数据库兼容性级别 130 开始,在插入堆或聚集列存储索引 (CCI) 时,可以...
-- Syntax for SQL Server and Azure SQL Database and Fabric SQL database [ WITH <common_table_expression> [ ,...n ] ] INSERT { [ TOP ( expression ) [ PERCENT ] ] [ INTO ] { | rowset_function_limited [ WITH ( <Table_Hint_Limited> [ ...n ] ) ] } { [ ( column_list...
Examples in this section demonstrate how to insert rows into a remote target table by using a linked server or a rowset function to reference the remote table. A. Inserting data into a remote table by using a linked server The following example inserts rows into a remote table. The example...
You can insert values in user-defined type columns by: Supplying a value of the user-defined type. Supplying a value in a SQL Server system data type, as long as the user-defined type supports implicit or explicit conversion from that type. The following example shows how to insert a valu...
-- Syntax for SQL Server and Azure SQL Database and Fabric SQL database [ WITH <common_table_expression> [ ,...n ] ] INSERT { [ TOP ( expression ) [ PERCENT ] ] [ INTO ] { | rowset_function_limited [ WITH ( <Table_Hint_Limited> [ ...n ] ) ] } { [ ( column_list...
-- Syntax for SQL Server and Azure SQL Database and Fabric SQL database [ WITH <common_table_expression> [ ,...n ] ] INSERT { [ TOP ( expression ) [ PERCENT ] ] [ INTO ] { | rowset_function_limited [ WITH ( <Table_Hint_Limited> [ ...n ] ) ] } { [ ( column_list...
For example, consider a user who logged in to an instance of SQL Server by using Windows Authentication. For the user to be able to use BULK INSERT or OPENROWSET to import data from a data file into a SQL Server table, the user account requires read access to the data file. With acces...
INSERTINTOCustomers(Name,Email)VALUES('John Doe','johndoe@example.com') 1. 步骤4:执行SQL语句 使用SqlCommand类来执行SQL语句。首先,创建一个SqlCommand对象,并将SQL语句和连接对象传递给它。 stringsqlQuery="INSERT INTO Customers (Name, Email) VALUES ('John Doe', 'johndoe@example.com')";using(SqlC...