40 lines
981 B
Transact-SQL
40 lines
981 B
Transact-SQL
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CREATE PROCEDURE [dbo].[SpGetNewTrustCode5ByProjectId]
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@tableName VARCHAR(50),/*表名*/
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@columnName VARCHAR(50),/*列名*/
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@projectId NVARCHAR(50),/*项目*/
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@prefix VARCHAR(50),/*流水号编码前缀*/
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@returnVal NVARCHAR(50) OUTPUT
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AS
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/*获取一个新的流水号（后五位上增加）*/
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DECLARE
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@sql NVARCHAR(500),
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@old NVARCHAR(50),
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@newid VARCHAR(50),
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@maxId NVARCHAR(50)/*已分配的最大值*/
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SELECT @sql=N'SELECT @maxId=MAX('+@columnName+') from '+@tableName+' where ProjectId = ''' + @projectId + '''and CH_TrustType=''1'' and ' + @columnName+' like ' + '''%' + @prefix + '%'''
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EXEC sp_executesql @sql, N'@maxId nvarchar(50) OUTPUT', @maxId OUTPUT
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/*因为最后字串包括R1，K1，所以这么处理*/
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SET @old=REVERSE(SUBSTRING(REVERSE(@maxId),1,CHARINDEX('-',REVERSE(@maxId))-1))
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IF(@old IS NULL)
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BEGIN
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SET @newid=@prefix+'0001'
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END
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ELSE
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BEGIN
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SET @newid = (SELECT MAX(LEFT(@old,4)))+1
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SET @newid = @prefix +RIGHT('0000'+@newid,4)
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END
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SET @returnVal=@newid
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GO
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