[英]How can i concat the values in MySql?
Please find the below code, The below code is sql server code[Stored Procedure] i am converting sql to mysql in this link mysql and below is the sql SP 请找到下面的代码,下面的代码是sql服务器代码[存储过程]我正在此链接mysql中将sql转换为mysql ,下面是sql SP
USE databasename
GO
ALTER PROCEDURE GetSbsberIDbyDept
@P_DepartmentIds varchar(max),
@OP_ID varchar(max) output
AS
BEGIN
Declare @Position int
Declare @length int
Declare @value varchar(8000)
Declare @SubscribrIDs varchar(max)
Declare @FinalSubscriberids varchar(max) = ''
SET @Position = 0
SET @length = 0
select @P_DepartmentIds
WHILE CHARINDEX(',', @P_DepartmentIds, @Position+1)>0
BEGIN
set @Length = CHARINDEX(',', @P_DepartmentIds, @Position+1) - @Position
set @value = SUBSTRING(@P_DepartmentIds, @Position, @length)
select @SubscribrIDs = STUFF((SELECT ', ' + cast(SubscriberId as varchar(max)) from SbsberDetails
where Deptid = @value and ParentId is null order by SubscriberId asc FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)') ,1,2,'')
if(@SubscribrIDs is not null)
begin
set @FinalSubscriberids += cast(@SubscribrIDs as varchar(max)) + ',';
end
set @Position = CHARINDEX(',', @P_DepartmentIds, @Position + @length) +1
END
SET @OP_ID = @FinalSubscriberids
END
And i converted to MySql but i am getting the error in STUFF statement like STUFF is not valid input at this position , below is the Mysql code 我转换为MySql但在STUFF语句中遇到错误,例如STUFF在此位置无效 ,下面是Mysql代码
USE databasename
DELIMITER //
CREATE PROCEDURE GetSbsberIDbyDept(
p_P_DepartmentIds longtext,
p_OP_ID out longtext )
BEGIN
Declare v_Position int;
Declare v_length int;
Declare v_value varchar(8000);
Declare v_SubscribrIDs longtext;
Declare v_FinalSubscriberids longtext Default '';
SET v_Position = 0;
SET v_length = 0;
select p_P_DepartmentIds
WHILE; CHARINDEX(',', p_P_DepartmentIds, v_Position+1)>0
BEGIN
set v_length = CHARINDEX(',', p_P_DepartmentIds, v_Position+1) - v_Position;
set v_value = SUBSTRING(p_P_DepartmentIds, v_Position, v_length);
set v_SubscribrIDs = STUFF((SELECT Concat(', ' , cast(SubscriberId as longtext)) from SbsberDetails
where Deptid = v_value and ParentId is null order by SubscriberId asc FOR XML; PATH(''), TYPE).value('.', 'NVARCHAR(MAX)') ,1,2,'')
if(v_SubscribrIDs is not null)
then
set v_FinalSubscriberids += concat(cast(v_SubscribrIDs as longtext) , ',');
end if;
set v_Position = CHARINDEX(',', p_P_DepartmentIds, v_Position + v_length) +1;
END;
SET p_OP_ID = v_FinalSubscriberids;
END;
//
DELIMITER ;
How do i convert the above sql code to MySql? 如何将上述sql代码转换为MySql?
STUFF是SQL Server函数,因此它在mysql中引发错误,我得到的东西试图行连接,但是在mysql中,有函数名称GROUP_CONCAT用于组插入,因此您可以使用它代替东西
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