sql server 游标的简单用法

USE [stureg]
GO
/****** Object:  StoredProcedure [dbo].[proc_tel_rule]    Script Date: 05/24/2012 14:38:55 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================

-- Create date: 2012-5-24
-- Description:	批量修改电话号码类型
-- =============================================
ALTER PROCEDURE [dbo].[proc_tel_rule]
-- Add the parameters for the stored procedure here
--@tel_no varchar(20) --out, --输出参数
AS
BEGIN
DECLARE @count int -- 计数
------------- 定义游标1,三连号AAA或者以上(AAAA、AAAAA),第四位起的任意位置 ---------------
declare @tel_no_1 varchar(20)
declare tel_no_list_1 cursor for
select tel_no from
(select tel_no,A = right(left(tel_no,4),1),B = right(left(tel_no,5),1),C = right(left(tel_no,6),1),D = right(left(tel_no,7),1),
E = right(left(tel_no,8),1),F = right(left(tel_no,9),1),G = right(left(tel_no,10),1),H = right(left(tel_no,11),1)
from stureg.dbo.t_tel_info) TMP
where (TMP.A = TMP.B AND TMP.A = TMP.C AND TMP.B = TMP.C)
OR (TMP.B = TMP.C AND TMP.B = TMP.D AND TMP.C = TMP.D)
OR (TMP.C = TMP.D AND TMP.C = TMP.E AND TMP.D = TMP.E)
OR (TMP.D = TMP.E AND TMP.D = TMP.F AND TMP.E = TMP.F)
OR (TMP.E = TMP.F AND TMP.E = TMP.G AND TMP.F = TMP.G)
OR (TMP.F = TMP.G AND TMP.F = TMP.H AND TMP.G = TMP.H)

Open tel_no_list_1 -- 打开游标
fetch next from tel_no_list_1 into @tel_no_1 -- 赋值
SET @count = 0
print '三连号AAA或者以上(AAAA、AAAAA),第四位起的任意位置'
While (@@fetch_status<>-1)
Begin
fetch next from tel_no_list_1 into @tel_no_1
print @tel_no_1
-- 更新数据库
UPDATE [stureg].[dbo].[t_tel_info] SET [aaa] = 1 WHERE tel_no = @tel_no_1
set @count = @count + 1
end
print '总数:'
print @count
close tel_no_list_1; -- 关闭游标
DEALLOCATE tel_no_list_1; -- 删除游标

------------ AABB,第四位起任意位置 -----------------------
declare @tel_no_2 varchar(20)
declare tel_no_list_2 cursor for
select tel_no from
(select tel_no,A = right(left(tel_no,4),1),B = right(left(tel_no,5),1),C = right(left(tel_no,6),1),D = right(left(tel_no,7),1),
E = right(left(tel_no,8),1),F = right(left(tel_no,9),1),G = right(left(tel_no,10),1),H = right(left(tel_no,11),1)
from stureg.dbo.t_tel_info) TMP
where (TMP.A = TMP.B AND TMP.C = TMP.D AND TMP.B != TMP.C)
OR (TMP.B = TMP.C AND TMP.D = TMP.E AND TMP.C != TMP.D)
OR (TMP.C = TMP.D AND TMP.E = TMP.F AND TMP.D != TMP.E)
OR (TMP.D = TMP.E AND TMP.F = TMP.G AND TMP.E != TMP.F)
OR (TMP.E = TMP.F AND TMP.G = TMP.H AND TMP.F != TMP.G)

Open tel_no_list_2 -- 打开游标
fetch next from tel_no_list_2 into @tel_no_2 -- 赋值
SET @count = 0
print 'AABB,第四位起任意位置'
While (@@fetch_status<>-1)
Begin
fetch next from tel_no_list_2 into @tel_no_2
print @tel_no_2
-- 更新数据库
UPDATE [stureg].[dbo].[t_tel_info] SET [aabb] = 1 WHERE tel_no = @tel_no_2
set @count = @count + 1
end
print '总数:'
print @count
close tel_no_list_2; -- 关闭游标
DEALLOCATE tel_no_list_2; -- 删除游标

------------ ABCD(ABCDE、ABCDEF)或以上,第四位起任意位置 ------
declare @tel_no_3 varchar(20)
declare tel_no_list_3 cursor for
select tel_no from
(select tel_no,A = right(left(tel_no,4),1),B = right(left(tel_no,5),1),C = right(left(tel_no,6),1),D = right(left(tel_no,7),1),
E = right(left(tel_no,8),1),F = right(left(tel_no,9),1),G = right(left(tel_no,10),1),H = right(left(tel_no,11),1)
from stureg.dbo.t_tel_info) TMP
where (TMP.A+1 = TMP.B AND TMP.B+1 = TMP.C AND TMP.C+1 = TMP.D)
OR (TMP.B+1 = TMP.C AND TMP.C+1 = TMP.D AND TMP.D+1 = TMP.E)
OR (TMP.C+1 = TMP.D AND TMP.D+1 = TMP.E AND TMP.E+1 = TMP.F)
OR (TMP.D+1 = TMP.E AND TMP.E+1 = TMP.F AND TMP.F+1 = TMP.G)
OR (TMP.E+1 = TMP.F AND TMP.F+1 = TMP.G AND TMP.G+1 = TMP.H)

Open tel_no_list_3 -- 打开游标
fetch next from tel_no_list_3 into @tel_no_3 -- 赋值
SET @count = 0
print 'ABCD(ABCDE、ABCDEF)或以上,第四位起任意位置'
While (@@fetch_status<>-1)
Begin
fetch next from tel_no_list_3 into @tel_no_3
print @tel_no_3
-- 更新数据库
UPDATE [stureg].[dbo].[t_tel_info] SET [abcd] = 1 WHERE tel_no = @tel_no_3
set @count = @count + 1
end
print '总数:'
print @count
close tel_no_list_3; -- 关闭游标
DEALLOCATE tel_no_list_3; -- 删除游标

------------ DCBA或以上,第四位起任意位置 --------
declare @tel_no_4 varchar(20)
declare tel_no_list_4 cursor for
select tel_no from
(select tel_no,A = right(left(tel_no,4),1),B = right(left(tel_no,5),1),C = right(left(tel_no,6),1),D = right(left(tel_no,7),1),
E = right(left(tel_no,8),1),F = right(left(tel_no,9),1),G = right(left(tel_no,10),1),H = right(left(tel_no,11),1)
from stureg.dbo.t_tel_info) TMP
where (TMP.A-1 = TMP.B AND TMP.B-1 = TMP.C AND TMP.C-1 = TMP.D)
OR (TMP.B-1 = TMP.C AND TMP.C-1 = TMP.D AND TMP.D-1 = TMP.E)
OR (TMP.C-1 = TMP.D AND TMP.D-1 = TMP.E AND TMP.E-1 = TMP.F)
OR (TMP.D-1 = TMP.E AND TMP.E-1 = TMP.F AND TMP.F-1 = TMP.G)
OR (TMP.E-1 = TMP.F AND TMP.F-1 = TMP.G AND TMP.G-1 = TMP.H)

Open tel_no_list_4 -- 打开游标
fetch next from tel_no_list_4 into @tel_no_4 -- 赋值
SET @count = 0
print 'ABCD(ABCDE、ABCDEF)或以上,第四位起任意位置'
While (@@fetch_status<>-1)
Begin
fetch next from tel_no_list_4 into @tel_no_4
print @tel_no_4
-- 更新数据库
UPDATE [stureg].[dbo].[t_tel_info] SET [dcba] = 1 WHERE tel_no = @tel_no_4
set @count = @count + 1
end
print '总数:'
print @count
close tel_no_list_4; -- 关闭游标
DEALLOCATE tel_no_list_4; -- 删除游标

END