/ CREATEORREPLACEFUNCTIONSplitStringWithSeq( p_stringINVARCHAR2, p_delimiterINVARCHAR2 )RETURNSplitStringWithSeqTableType PIPELINEDAS l_start_pos PLS_INTEGER := 1; l_end_pos PLS_INTEGER; l_seq_num PLS_INTEGER := 1; l_str_value VARCHAR2(4000); BEGIN LOOP l_end_pos := INSTR(p_string,...
CREATE FUNCTION dbo.discount_price(@price DECIMAL(12,2), @discount DECIMAL(12,2))RETURNS DECIMAL (12,2) ASBEGIN RETURN @price * (1 - @discount);END 1. 微软研究员Karthik Ramachandra表示,这个标量函数可能会导致一个通常只需要1.6秒的查询变成29分11秒那么久。虽然没有语义差异,速度却慢了1000倍。
https://docs.microsoft.com/zh-cn/sql/t-sql/functions/string-split-transact-sql?f1url=%3FappId%3DDev15IDEF1%26l%3DZH-CN%26k%3Dk(String_Split);k(DevLang-TSQL)%26rd%3Dtrue&view=sql-server-ver15docs.microsoft.com/zh-cn/sql/t-sql/functions/string-split-transact-sql?f1url=%3FappId...
Looks like bug is still present in SSMS 18.10 I see a red underline and error message about insufficient number of arguments. The function itself works fine, though, in SQL 2019 and in SQL 2016. Please sign in to rate this answer. 0 comments No comments Report a concern Sign in to ...
function fn_get_split_table(i_in_char clob,i_split varchar2) return base_type_library_pkg.ba_tab_type pipelined is v_ty_member base_type_library_pkg.ba_type; v_count number := 0; v_flag number := 0; v_len number ; begin if i_in_char is null or i_split is nullthen return;...
PRINT @sql exec (@sql) if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[f_splitSTR]') and xtype in (N'FN', N'IF', N'TF')) drop function [dbo].[f_splitSTR] GO --方法1:循环截取法 CREATE FUNCTION f_splitSTR( ...
功能与.net版string.Split函数类似,只不过.net返回的是数组,这个返回的是一个单列表格,每个拆分出来的子串占一行。可选是否移除空格子串和重复项。市面上类似的函数不算少,但大多都是在循环中对原串进行改动,我感觉这样不好,虽然不知道sql的字符串是不是像.net的一样
USE [ceshi] GO /*** Object: UserDefinedFunction [dbo].[Split] Script Date: 08/05/2019 13:20:32 ***/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER FUNCTION [dbo].[Split] ( @Expression varchar(8000) , @Delimiter varchar(10) ) RETURNS @Values table(Value varchar(2000...
SQL 数据库 转载 mob604756ed02fe 2019-11-22 13:51:00 269阅读 SqlServer数据库自定义Split()函数 CREATE FUNCTION [dbo].[Split] ( @SplitString text, -- 如果要传入NText类型,下面需要相应的修改,注释行为NText下同 @Separator varchar(2) = ','-- NVarChar(2) = N',' ) RETURNS @SplitStringsTabl...
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