CREATEFUNCTION[dbo].[F_CM_Split](@textVARCHAR(MAX),@delimiterVARCHAR(1)='')RETURNS@StringsTABLE( ITEM_VALUEVARCHAR(MAX) )ASBEGINDECLARE@indexINTSET@index=-1WHILE(LEN(@text)>0)BEGINSET@index=CHARINDEX(@delimiter,@text)IF(@index=0)AND(LEN(@text)>0)BEGININSERTINTO@StringsVALUES(@text)BREAK...
1:go2:alter procedure Performant_SP13:@empid int4:as5:begin6:create table #table7:(8:Department int,9:Salary_Max int,10:Salary_Min int11:)12:create clustered index #table_index1 on#table(Department)13:insert into #table select*fromDep_Salaries1(@empid)14:selectT.deptidasdepartment_name,...
表值用户定义函数(Table-Valued User-Defined Functions), 与内联函数区别在于,表值用户定义函数返回的是一个表变量,在函数体中,通过赋值给这个表变量,然后返回表变量 如下dbo.fn_TableValuedFunction即为内联用户定义函数, createfunctionfn_TableValuedFunction (@p_paramtervarchar(500) )RETURNS@ResultTABLE( idint...
问T-SQL多语句表值函数EN如果参数以A开头，则运行select语句SQL是结构化查询语言，也是关系数据库的标准...
1use[MyTest]2create tableTest1([id]int,[name]varchar(20))3create tableTest2([id]int,[name]varchar(20),[address]varchar(100)) 代码语言:javascript 代码运行次数:0 运行 AI代码解释 1declare @RowC int2declare @Namevarchar(20)3set @RowC=04while@RowC<4000005Begin6set @Name='TestName'+CAST...
Next, create the fn_splitarr table-valued function, which accepts an array as an argument and returns a table containing the individual elements and their positions (see Figure 5). To test the function, run this code: Copy SELECT * FROM fn_splitarr('20,40,30') The output should look...
Natively compiledtable-valued functions. Improving temp table and table variable performance using memory optimization A natively compiled user defined function (UDF) runs faster than an interpreted UDF. Here are some things to consider with UDFs: ...
STRING_SPLIT is a table-valued function. STRING_AGG Return a string that consists of concatenated string values in row groups. SELECT STRING_AGG(C, ',') FROM VALUES(1, 'a'), (1, 'b'), (2,'c') AS X (ID,C) GROUP BY I 1 'ab' 2 '...
table:The tabledata type can’t be used in CREATE TABLEas acolumn type. Instead it is used for table variables or for storage of rows for atable-valued function. text:Variable-length data with maximum length of 2,147,483,647 characters. This data type will be removed in afuture version...
-- Transact-SQL Inline Table-Valued Function SyntaxCREATE[ORALTER]FUNCTION[schema_name. ]function_name( [ { @parameter_name[AS] [type_schema_name. ]parameter_data_type[NULL] [ = default ] [READONLY] } [ ,...n ] ] )RETURNSTABLE[WITH<function_option>[ ,...n ] ] [AS]RETURN[...