charindex

What is the CHARINDEX (SQL SERVER) equivalent in POSTGRESQL?

由 匆匆过客 提交于 2019-12-23 06:55:07
问题 I am trying CHARINDEX in Postgresql. But it says: function CHARINDEX() does not exist If no such inbuilt function exists in postgresql, then is there any function that serves as an alternative to charindex? If yes, What is the CHARINDEX (SQL SERVER) equivalent in POSTGRESQL ? 回答1: The equivalent function in postgresql is: strpos(string, substring) Or: position(substring in string) They are equivalent, just with different order in parameters. If you also need parameter start_location, you will

What is the CHARINDEX (SQL SERVER) equivalent in POSTGRESQL?

由 会有一股神秘感。 提交于 2019-12-23 06:54:13
问题 I am trying CHARINDEX in Postgresql. But it says: function CHARINDEX() does not exist If no such inbuilt function exists in postgresql, then is there any function that serves as an alternative to charindex? If yes, What is the CHARINDEX (SQL SERVER) equivalent in POSTGRESQL ? 回答1: The equivalent function in postgresql is: strpos(string, substring) Or: position(substring in string) They are equivalent, just with different order in parameters. If you also need parameter start_location, you will

SQL Server 自定义排序

由 早过忘川 提交于 2019-12-19 00:53:51
方法一： 比如需要对SQL表中的字段NAME进行如下的排序： 张三（Z） 李四（L) 王五（W） 赵六（Z） 按照sql中的默认排序规则，根据字母顺序（a~z）排，结果为：李四 王五 赵六 张三 自定义排序：order by charindex（NAME，‘张三,李四,王五,赵六’） CHARINDEX函数返回字符或者字符串在另一个字符串中的起始位置。CHARINDEX函数调用方法如下： CHARINDEX ( expression1 , expression2 [ , start_location ] ) Expression1是要到expression2中寻找的字符中，start_location是CHARINDEX函数开始在expression2中找expression1的位置。 CHARINDEX函数返回一个整数，返回的整数是要找的字符串在被找的字符串中的位置。假如CHARINDEX没有找到要找的字符串，那么函数整数“0”。让我们看看下面的函数命令执行的结果： CHARINDEX(‘SQL’, ‘Microsoft SQL Server’) 这个函数命令将返回在“Microsoft SQL Server”中“SQL”的起始位置，在这个例子中，CHARINDEX函数将返回“S”在“Microsoft SQL Server”中的位置11。 接下来

SQL Server rtrim ltrim and charindex

由 我的未来我决定 提交于 2019-12-12 19:24:46
问题 I have the following scenario John Doe johndoe@email.com john johndoe@email.com I want away that I can detect the first right space and just exclude everything to the left so I just get the email address of the person. So: John Doe johndoe@email.com should be johndoe@email.com john johndoe@email.com should be johndoe@email.com This is what i have Declare @test varchar(50) Select @test = 'John Doe johndoe@email.com' SELECT Right(@test, CHARINDEX(' ', @test)) This is only giving me the email

How to get string between two characters

由 半城伤御伤魂 提交于 2019-12-12 01:04:52
问题 I need to get the string between the - and the ·, which is the GigabitEthernet1/0/1 CW-3D13-SW1 - GigabitEthernet1/0/1 · Uplink to 1K5-Core1 CW-3D13-SW1 - FastEthernet1/0/43 · PHSA-MPAACT-3D13/16 - Cisco 2811 Fa 0/0 c&w-internet-sw-ACB - GigabitEthernet1/0/24 · MPAACT PNG/UBC School of Medicine c&w-internet-sw-ACB - GigabitEthernet1/0/25 - Int-Link-CW-BCCA-Oak-St I can use the following SUBSTRING(Caption, CHARINDEX(' - ', Caption) + 3, CHARINDEX(' · ', Caption) - CHARINDEX('- ', Caption) +

Using Charindex with in Substring is resulting in error

由 社会主义新天地 提交于 2019-12-11 13:25:32
问题 I have CHARINDEX function with in SUBSTRING which has to identify delimiter (|) value and return the value as parameter to a substring When delimiter is present it works fine select SUBSTRING('SH1684|32I5', 1, CHARINDEX('|', 'SH1684|32I5') -1) AS ID where the ID is SH1684 When it is not present This results in error as Msg 536, Level 16, State 1, Line 1 Invalid length parameter passed to the substring function. But my intention is to get value in ID as SH168432I5. How can I circumvent this

Splitting a dynamic string

由 可紊 提交于 2019-12-11 08:09:03
问题 I need help parsing a dynamic string(see below). This string can change to only have one set of values to two, to three(like the one below). Raw String: valueA=valueB=valueC=valueD==valueE&valueA=valueB=valueC=valueD==valueE&valueA=valueB=valueC=valueD==valueE End Result: VelueB, ValueB, ValueB I have been able to extract valueA using the STUFF and CHARINDEX function(see below) but I'm having difficulty just getting valueB . I have also tried doing it in ssrs using the split function but

SQLServer Split函数

由 早过忘川 提交于 2019-12-10 17:25:44
CREATE FUNCTION [ dbo ] . [ SqlServer_Split ] ( @ SourceSql NVARCHAR ( MAX ) , @ StrSeprate NVARCHAR ( 10 ) ) -- @SourceSql : 要截取的字符串，@StrSeprate：分隔符，例如：‘ , ’ RETURNS @temp TABLE ( result NVARCHAR ( 100 ) ) -- 实现split功能 的函数 AS BEGIN DECLARE @ TempString NVARCHAR ( 50 ) = '' ; -- 临时存放的字符串 WHILE ( CHARINDEX ( ',' , @SourceSql ) < > 0 ) BEGIN SET @TempString = SUBSTRING ( @SourceSql , 1 , CHARINDEX ( ',' , @SourceSql ) - 1 ) ; -- 截取左边第一个逗号的值（不包括，）。 INSERT @temp ( result ) VALUES ( @TempString -- result - nvarchar ( 100 ) ) ; -- 把第一个逗号的左边插入临时表（不包括，） SET @SourceSql = STUFF ( @SourceSql , 1 ,

Sql中CHARINDEX用法

由 大兔子大兔子 提交于 2019-12-09 23:13:37
CHARINDEX作用 　　写SQL语句我们经常需要判断一个字符串中是否包含另一个字符串，但是SQL SERVER中并没有像C#提供了Contains函数，不过SQL SERVER中提供了一个叫CHAEINDX的函数，顾名思义就是找到字符（char）的位置（index），既然能够知道所在的位置，当然就可以判断是否包含在其中了。 通过CHARINDEX如果能够找到对应的字符串，则返回该字符串位置，否则返回0。 基本语法如下： 　　 CHARINDEX ( expressionToFind , expressionToSearch [ , start_location ] ) expressionToFind ：目标字符串，就是想要找到的字符串，最大长度为8000 。 　　expressionToSearch ：用于被查找的字符串。 start_location：开始查找的位置，为空时默认从第一位开始查找。 CHAEINDEX示例 　　1.简单用法　　 　　select charindex('test','this Test is Test') 查询结果： 　2.增加开始位置 　　select charindex('test','this Test is Test',7) 　　查询结果： 　3.大小写敏感 　　select charindex('test','this Test is
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