from user_constraints where table_name = upper('&table_name'); select c.constraint_name,c.constraint_type,cc.column_name from user_constraints c,user_cons_columns cc where c.owner = upper('&table_owner') and c.table_name = upper('&table_name') and c.owner = cc.owner and c.constra...
CREATE FUNCTION [ owner_name.] function_name ( [ { @parameter_name [AS] scalar_parameter_data_type [ = default ] } [ ,...n ] ] ) RETURNS scalar_return_data_type [ WITH < function_option> [ [,] ...n] ] [ AS ] BEGIN function_body RETURN scalar_expression END 1. 2. 3. 4...
CREATE FUNCTION[ owner_name.]function_name ([ { @parameter_name [AS]scalar_parameter_data_type[ = default ]}[ ,...n ]] ) RETURNSTABLE[ WITH < function_option > [ [,]...n] ][ AS ]RETURN[ ( ]select-stmt[ ) ] 内嵌表值函数# 内嵌表值函数返回一个单条 SELECT 语句产生的结果的表,...
createdatabase[sample_db]onprimary( name='sample_db', filename='C:\SQL_SERVER_temp\sampl_db.mdf', size=5120KB, maxsize=30MB, filegrowth=5%)logon( name='sample_log', filename='C:\SQL_SERVER_temp\sample_log.ld...
Syntax for CLR function clauses. syntaxsql 复制 <order_clause> ::= { <column_name_in_clr_table_type_definition> [ ASC | DESC ] } [ , ...n ] <method_specifier> ::= assembly_name.class_name.method_name <clr_function_option> ::= { [ RETURNS NULL ON NULL INPUT | CALLED ON NU...
IDTSVirtualInputColumn100.SourceComponent 属性 参考 反馈 定义 命名空间: Microsoft.SqlServer.Dts.Pipeline.Wrapper 程序集: Microsoft.SqlServer.DTSPipelineWrap.dll 获取虚拟输入列所源自的组件的名称。 C# [System.Runtime.InteropServices.DispId(111)]publicstringSourceComponent { [System.Runtime.Int...
MappedColumnID Gets or sets the ID of a column that is mapped to this IDTSInputColumn100 object. Name Gets or sets the name of an input column. ObjectType Gets the value from a DTSObjectType enumeration that corresponds to an input column. Precision Gets the total number of digits...
DTS_E_EXPREVALFUNCTIONPARAMNOTSTATIC 字段 DTS_E_EXPREVALILLEGALESCAPEINSTRINGLITERAL 字段 DTS_E_EXPREVALILLEGALHEXESCAPEINSTRINGLITERAL 字段 DTS_E_EXPREVALINPUTCOLUMNIDNOTFOUND 字段 DTS_E_EXPREVALINPUTCOLUMNNAMENOTFOUND 字段 DTS_E_EXPREVALINVALIDCAST 字段 DTS_E_EXPREVALINVALIDCASTCODEPAGE 字段 DTS_E_EXP...
DTS_E_EXPREVALFUNCTIONOVERFLOW 欄位 DTS_E_EXPREVALFUNCTIONPARAMNOTSTATIC 欄位 DTS_E_EXPREVALILLEGALESCAPEINSTRINGLITERAL 欄位 DTS_E_EXPREVALILLEGALHEXESCAPEINSTRINGLITERAL 欄位 DTS_E_EXPREVALINPUTCOLUMNIDNOTFOUND 欄位 DTS_E_EXPREVALINPUTCOLUMNNAMENOTFOUND 欄位 DTS_E_EXPREVALINVALIDCAST 欄位 DTS_E_...
用create function 语句创建符合以下要求的函数: ·依据人员编号计算其到达所有地点的次数(即行程表中的记录数)。 ·函数名为:Count_Records。函数的参数名可以自己命名 利用创建的函数,仅用一条 SQL 语句查询在行程表中至少有 3 条行程记录的人员信息,查询结果依人员编号排序。 二、软件功能学习 实验环境 操作系统...