EXECUTEsp_addextendedproperty N'MS_Description','员工姓名', N'user', N'dbo', N'table', N'StaffList', N'column', N'StaffName' EXECUTEsp_addextendedproperty N'MS_Description','部门名称', N'user', N'dbo', N'table', N'StaffList', N'column', N'StaffDepartmnet' EXECUTEsp_addextendedprop...
[SQL]Table Description SQL Server 2005 生成表描述 写文章时常用 SELECT 表名= CASE WHEN A.COLORDER=1 THEN D.NAME ELSE ' ' END, 表说明 = CASE WHEN A.COLORDER=1 THEN ISNULL(F.VALUE, ' ') ELSE ' ' END, 例序號 = A.COLORDER, 例名= A.NAME, 标识= CASE WHEN COLUMNPROPERTY( A.ID,...
(SYSTEM_VERSIONING = ON (HISTORY_TABLE=[HR].[EmployeesHistory]), LEDGER = ON (LEDGER_VIEW=[HR].[EmployeesLedger] (TRANSACTION_ID_COLUMN_NAME=TransactionId,SEQUENCE_NUMBER_COLUMN_NAME=SequenceNumber,OPERATION_TYPE_COLUMN_NAME=OperationId,OPERATION_TYPE_DESC_COLUMN_NAME=OperationTypeDescription))); ...
參數必要資料類型必要的可 Null 性Description ROW datetime2 START:NOT NULLEND:NOT NULL 資料列版本的開始時間 (START) 有效,或資料列版本的結束時間 (END) 有效。 使用這個引數搭配 PERIOD FOR SYSTEM_TIME 引數來建立時態表。 TRANSACTION_ID BIGINT START:NOT NULLEND:NULL 適...
ParameterRequired data typeRequired nullabilityDescription ROW datetime2 START: NOT NULLEND: NOT NULL Either the start time for which a row version is valid (START) or the end time for which a row version is valid (END). Use this argument with the PERIOD FOR SYSTEM_TIME argument to create...
Applies to:SQL ServerAzure SQL DatabaseAzure SQL Managed Instance A computed column is a virtual column that isn't physically stored in the table, unless the column is markedPERSISTED. A computed column expression can use data from other columns to calculate a value for the column to which...
In this situation, errors that resemble the following are also written to the SQL Server error logs: date time.730 spid51 SqlDumpExceptionHandler: Process 51 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process. ...
Assume that you use a calculated table that summarizes the dataset in a partition query in Microsoft SQL Server 2014 and 2016. In this situation, you may experience a circular dependency in the following scenario...
An alias data type based on a SQL Server system data type. You create alias data types with the CREATE TYPE statement before they can be used in a table definition. A .NET Framework user-defined type, and the schema to which it belongs. You create user-defined types with the CREATE TYP...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric A computed column is a virtual column that isn't physically stored in the table, unless the column is marked PERSISTED. A computed column expression can use data from other columns to ...