Streamlined SQL 1 (T-SQL)

Source: Internet
Author: User

for example, the table contains the following data
lineid cityid
01 Shenyang
01 Liaoyang
01 Anshan
02 Shenyang
02 Fushun
02 meihe

The result is as follows
01 Shenyang Liaoyang Anshan
02 Shenyang Fushun mehe
How can I construct an SQL statement?
=================================< br> function:
Create Function getstr (@ content varchar (20)
Returns varchar (2000)
declare @ STR varchar (2000)
set @ STR = ''
select @ STR = @ STR + rtrim (cityid) from table where lineid = @ content
-- this sentence is the key, you do not need to write a cursor loop. In this way, the characters in the write record set are automatically superimposed.
return @ STR
select distinct lineid, DBO. getstr (lineid) from Table

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