INSERT INTO table_name (列1, 列2,...) VALUES (值1, 值2,...) 示例: insert intotb_Uservalues('张三','123456');insert intotb_User(UserName,Password)values('李四','234567'); 如果为某个列指定了值,Sql Server将使用这个值。如果没有为某个列指定值,SQL Server将检查是否为该列定义了默认值。
Constraintsplace limitations on the data that can be entered into a column or columns. A primary key enforces entity integrity, meaning that rows are guaranteed to be unambiguous and unique. Best practices for database normalization dictate that every table should have a primary key. A primary k...
ColumnMasterKeyStoreProviderNameParameter ColumnReferenceExpression ColumnStorageOptions ColumnType ColumnWithSortOrder CommandOptions CommandSecurityElement80 CommitTransactionStatement CommonTableExpression CompositeGroupingSpecification CompressionDelayIndexOption CompressionDelayTimeUnit CompressionEndpointProtocolOp...
In order to create these design-time stored procedures, we must know how to extract the table's column definition information from the SQL Server system tables and Information Schema views. First, we need to find the columns themselves, and then find out which are the primary key columns, wh...
报错:Cannot insert explicit value for identity column in table 't' when identity_insert is set to OFF 2013-07-23 11:56 −通常情况下,不能向 SQL Server 自增字段插入值,如果非要这么干的话,SQL Server 就会好不客气地给你个错误警告: Server: Msg 544, Level 16, State 1, Line 1 ... ...
Transact-SQL reference for the SET IDENTITY_INSERT statement. When set to ON, this permits inserting explicit values into the identity column of a table.
CREATE TABLE Genres ( GenreId int IDENTITY(1,1) NOT NULL PRIMARY KEY, Genre nvarchar(50) NOT NULL UNIQUE NONCLUSTERED ); GONow, if someone tries to insert a duplicate value into the Genre column, an error will occur.Create a CHECK Constraint...
INSERT INTO MyTable WITH (BULK_CHECK_CONSTRAINTS) SELECT col1, col2, col3 FROM OPENROWSET(BULK 'c:\temp\textfile1.txt', FORMATFILE = 'c:\temp\textfile1.fmt') AS C(col1, col2, col3) Other options you can specify as a table hint include: BULK_BATCHSIZE, BULK_FIRE_TRIGGERS, BUL...
ColumnWithSortOrder CommandOptions CommandSecurityElement80 CommitTransactionStatement CommonTableExpression CompositeGroupingSpecification CompressionDelayIndexOption CompressionDelayTimeUnit CompressionEndpointProtocolOption CompressionPartitionRange ComputeClause ComputeFunction ComputeFunctionType ConstraintDefinition ...
SqlServer.TransactSql.ScriptDom Microsoft.SqlServer.TransactSql.ScriptDom AddAlterFullTextIndexAction 類別 AddFileSpec 類別 AddMemberAlterRoleAction 類別 AddSearchPropertyListAction 類別 AddSignatureStatement 類別 AdHocDataSource 類別 AdHocTableReference 類別 AffinityKind 列舉 AlgorithmKeyOption 類別 Allow...