Page History: SQL 인젝션
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Page Revision: 2010/10/22 16:37
텍스트 제외 쿼리
DECLARE @T varchar(255), @C varchar(255);
DECLARE Table_Cursor CURSOR FOR
SELECT a.name, b.name
FROM sysobjects a, syscolumns b
WHERE a.id = b.id AND a.xtype = 'u' AND
(b.xtype = 99 OR
b.xtype = 35 OR
b.xtype = 231 OR
b.xtype = 167);
OPEN Table_Cursor;
FETCH NEXT FROM Table_Cursor INTO @T, @C;
WHILE (@@FETCH_STATUS = 0) BEGIN
EXEC(
'Update ['+@T+'] set ['+@C+']=replace(['+@C+'], '''', '''')where ['+@C+'] like ''%
'''
);
FETCH NEXT FROM Table_Cursor INTO @T, @C;
END;
CLOSE Table_Cursor;
DEALLOCATE Table_Cursor;
텍스트 포함 쿼리 - 테이블명과 칼럼명을 수동으로 집어너야됨
<nowiki>Declare @replacestr varchar(10)
Declare @deletestr varchar(100)
Declare @ptr varbinary(16)
Declare @len int
Declare @offset int
Declare @cnt int
Set @deletestr = 'http://dev-server:10001'
Set @replacestr = ''
Select @ptr = textptr(p_contents) From tb_product_list Where p_code='P000000005'
Set @len = len(@deletestr)
Set @cnt = 0
While(1=1) begin --일단 무한 loop로 돌려놓고
Select @offset=patindex('%'+@deletestr+'%', p_contents) From tb_product_list Where p_code='P000000005'
If @offset = 0 Begin
break
End
Else begin
Set @offset = @offset - 1
Updatetext tb_product_list.p_contents @ptr @offset @len @replacestr
Set @cnt = @cnt + 1
End
End
Select convert(varchar(10), @cnt) + ' 개 replace'</nowiki>
8000자가 넘는지 검사하는 쿼리
0이면 업는것이고 1이면 한개가 있다는 말
<nowiki>DECLARE @T varchar(255), @C varchar(255);
DECLARE Table_Cursor CURSOR FOR
SELECT a.name, b.name
FROM sysobjects a, syscolumns b
WHERE a.id = b.id AND a.xtype = 'u' AND
(b.xtype = 99 OR
b.xtype = 35 OR
b.xtype = 231 OR
b.xtype = 167);
OPEN Table_Cursor;
FETCH NEXT FROM Table_Cursor INTO @T, @C;
WHILE (
FETCH_STATUS = 0) BEGIN
EXEC(
'SELECT count(*) FROM '+@T+' where '+@C+' like % AND len(convert(varchar(8000), '+@C+'))=8000 '
);
FETCH NEXT FROM Table_Cursor INTO @T, @C;
END;
CLOSE Table_Cursor;
DEALLOCATE Table_Cursor;
----
8000자가 안될때 텍스트 형식 으로된거 제거
DECLARE @T varchar(255), @C varchar(255);
DECLARE Table_Cursor CURSOR FOR
SELECT a.name, b.name
FROM sysobjects a, syscolumns b
WHERE a.id = b.id AND a.xtype = 'u' AND
(b.xtype = 99 OR
b.xtype = 35 OR
b.xtype = 231 OR
b.xtype = 167);
OPEN Table_Cursor;
FETCH NEXT FROM Table_Cursor INTO @T, @C;
WHILE (@@FETCH_STATUS = 0) BEGIN
EXEC(
'update ['+@T+'] set ['+@C+'] = left(
convert(varchar(8000), ['+@C+']),
len(convert(varchar(8000), ['+@C+'])) - 6 -
patindex(''%tpircs<%'',
reverse(convert(varchar(8000), ['+@C+'])))
)
where ['+@C+'] like ''%'''
);
FETCH NEXT FROM Table_Cursor INTO @T, @C;
END;
CLOSE Table_Cursor;
DEALLOCATE Table_Cursor;@@