Sql Server 环境,如果环境不对, 自己参考思路去修改吧
select * into #temp1 from table1 where len(col1) > 5 and len(col2) > 5
select * into #temp_end from #temp1 where 1=3
Declare @i int,@ii int
Declare @uid int,@col1 varchar(255),@col2 varchar(255)
Declare Fetch_Query_Cursor cursor for select UID,col1,col2 from #temp1
Open Fetch_Query_Cursor
Fetch Next From Fetch_Query_Cursor into @uid,@col1,@col2
while @@Fetch_status = 0
begin
select @i = 1,@ii=0
while @i
begin
if charindex(substring(@col1,@i,1),@col2) > 0
select @ii = @ii+1
select @i = @i+1
end
If @ii >=5
Insert into #temp_end select * from #temp1 where Uid = @uid
Fetch Next From Fetch_Query_Cursor into @uid,@col1,@col2
end
Close Fetch_Query_Cursor
Deallocate Fetch_Query_Cursor
Select * from #temp_end
Drop table #temp1
Drop table #temp_end
字符串模糊查询,主要是输入不完全的信息进行查找,即每次查找的是待查询的内容中是否含有输入的内容,如果有,则表e68a84e8a2ade79fa5e9819331333363376434示找到了。下面详细的说明下模糊查询的实现方法,代码如下:
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#include
#include
#include
int main(int argc, const char * argv[])
{
char str[] = "hello welcome to china
以上是执行模糊匹配的SQL数据库查询的详细内容。更多信息请关注PHP中文网其他相关文章!