MySQL如何复制表中的一条记录并插入
时间:2014-10-30 17:22 来源:linux.it.net.cn 作者:it
先把需求说一下吧。从 MSSQL 中导出一个文章表,需要插入到 PHPCMS 中的内容表 phpcms_content 去,需要做到文章可以发布到不同的栏目中去。也就是说,需要复制一条记录,并修改其 catid,再插入到表尾的位置上。
MySQL 复制一条数据并插入的语句:
1
INSERT INTO phpcms_content (SELECT
".$r[$i]['aid']."
+ 520,
".$r[$i]['cateid']."
, news_catid, catid, typeid, areaid, title, style, thumb, keywords, keywords, posids, url, listorder, status, userid, username, inputtime, updatetime, searchid, islink, prefix FROM phpcms_content WHERE contentid =
'".$r[$i-1]['
aid
']."'
)
大致为:insert into a SELECT id+1, ...(其它字段) FROM a ;
下面PHP具体程序:
01
$query
=
"SELECT * FROM articleincategory ORDER BY ArticleID "
;
02
$result
=
$connector
-> query(
$query
);
03
04
$i
= 0;
05
while
(
$myrow
=
$connector
-> fetch_array(
$result
))
06
{
07
$r
[
$i
][
'aid'
] =
$myrow
[
"ArticleID"
];
08
$r
[
$i
][
'cateid'
] =
$myrow
[
"CategoryID"
];
09
$i
++;
10
}
11
12
for
(
$i
= 0;
$i
<
count
(
$r
);
$i
++)
13
{
14
if
(
$i
> 0)
15
{
16
if
(
$r
[
$i
][
'aid'
] ==
$r
[
$i
-1][
'aid'
] )
17
{
18
echo
'第 '
.
$i
.
' 条数据 '
.
$r
[
$i
][
'aid'
] .
' 与前一条数据 '
.
$r
[
$i
-1][
'aid'
] .
' 重复'
.
'<br/>'
;
19
$sql
=
" INSERT INTO phpcms_content (SELECT "
.
$r
[
$i
][
'aid'
].
" + 520, "
.
$r
[
$i
][
'cateid'
].
", news_catid, catid, typeid, areaid, title, style, thumb, keywords, keywords, posids, url, listorder, status, userid, username, inputtime, updatetime, searchid, islink, prefix FROM phpcms_content WHERE contentid = '"
.
$r
[
$i
-1]['aid
']."'
) ";
20
//$sql = " INSERT INTO phpcms_c_news (SELECT ".$r[$i]['aid']." + 520, template, titleintact, content, groupids_view, readpoint, author, copyfrom, paginationtype, maxcharperpage, sub_title FROM phpcms_c_news WHERE contentid = '".$r[$i-1]['aid']."') ";
21
echo
$sql
.
'<br />'
;
22
//$result = $connector -> query($sql);
23
//INSERT INTO test (SELECT id + 10, name, class, score FROM test WHERE id = '1');
24
}
25
26
else
if
(
$r
[
$i
][
'aid'
] !=
$r
[
$i
-1][
'aid'
] )
27
{
28
$sql
=
" UPDATE phpcms_content SET origin_cateid = '"
.
$r
[
$i
]['cateid
']."'
WHERE contentid =
'".$r[$i]['
aid
']."'
";
29
echo
$sql
.
'<br />'
;
30
//$result = $connector -> query($sql);
31
}
32
33
}
34
}
如果不需要插入,则更简单:insert into mytable (select * from mytable where id=1) ON DUPLICATE KEY UPDATE id=2;
或者: update mytable set id=2 where id=1;
(责任编辑:IT)
先把需求说一下吧。从 MSSQL 中导出一个文章表,需要插入到 PHPCMS 中的内容表 phpcms_content 去,需要做到文章可以发布到不同的栏目中去。也就是说,需要复制一条记录,并修改其 catid,再插入到表尾的位置上。 MySQL 复制一条数据并插入的语句:
大致为:insert into a SELECT id+1, ...(其它字段) FROM a ; 下面PHP具体程序:
如果不需要插入,则更简单:insert into mytable (select * from mytable where id=1) ON DUPLICATE KEY UPDATE id=2; 或者: update mytable set id=2 where id=1; (责任编辑:IT) |