fastreport´òÓ¡´úÂë¼°SQLºÏ²¢×ֶεÄÓï¾ä
procedure Tform1.Button5Click(Sender: TObject);
var
p:pointer;
FrfStr:string;
begin
inherited;
Screen.Cursor:=MYCURSORWAITHAND;
with cdsPrint do
begin
Active:=false;
//Õâ¸öSQLÓÃÓÚ½«remarkÖеļǼºÏ²¢µ½Ò»Æð!
CommandText:='select a.ITEM_ID, a.ITEM_NAME,count(a.Coll_ID) as num,ltrim(max(sys_connect_by_path(a.remark, '';'')), '';'') remark '
+' from (select /*+index(b,TAB_ORDER_I)*/ b.ITEM_ID,b.Coll_ID,b.ITEM_NAME,b.remark,row_number() over(partition by b.ITEM_ID order by b.ITEM_ID)'
+' ITEM_ID1,row_number() over(order by b.ITEM_ID) + dense_rank() over(order by b.ITEM_ID) ITEM_ID2 '
+' from TAB_ORDER b where b.Coll_ID ='''+DBComboBoxEh1.Text+''''
+' ) a'
+' start with ITEM_ID1 = 1 connect by prior ITEM_ID2 = ITEM_ID2-1 group by a.ITEM_ID,'
+' a.ITEM_NAME order by a.ITEM_ID ';
Active:=true ;
end;
cds_Print.DisableControls;
p:=cdsPrint.GetBookmark;
FrfStr:='report1l.frf';
try
if cdsPrint.Active and (cdsPrint.RecordCount<>0) then
begin
frReport1.LoadfromFile(ExtractFilePath(ParamStr(0))+'Report\'+FrfStr);
PrintSet;
frReport1.ShowReport;
end
else
begin
Screen.Cursor:=crDefault;
Application.MessageBox(pchar(STR_MESSAGEBOX_HEADER+'ûÓÐÊý¾Ý¿É´òÓ¡'),pchar(self.Caption),MB_OK or MB_ICONEXCLAMATION);
end;
finally
cdsPrint.GotoBookmark(p);
cdsPrint.EnableControls;
&nb
Ïà¹ØÎĵµ£º
Êý¾Ý¿âsqlÓï¾äϵÁж¼ÊÇÒÔÏÂÃæµÄ±íΪ»ù´¡µÄ
1. д³ö²½Öè4Öеĸ÷Ïî²Ù×÷µÄSQLÓï¾ä¡£
¢Ù ¸øÑ§Éú±íÔö¼ÓÒ»ÊôÐÔNation£¨Ãñ×壩£¬Êý¾ÝÀàÐÍΪVarchar£¨20£©£»
alter table Student add Nation varchar(20);
¢Ú ɾ³ýѧÉú±íÖÐÐÂÔöµÄÊôÐÔNation£»
alter table Student DR ......
MS-SQLÖÐsaµÇ¼ʧ°Ü:
¸Ã´íÎó²úÉúµÄÔÒòÊÇÓÉÓÚSQL ServerʹÓÃÁË"½ö Windows"µÄÉí·ÝÑéÖ¤·½Ê½,
Òò´ËÓû§ÎÞ·¨Ê¹ÓÃSQL ServerµÄµÇ¼ÕÊ»§£¨Èç sa £©½øÐÐÁ¬½Ó.½â¾ö·½·¨ÈçÏÂËùʾ:
1.ÔÚ·þÎñÆ÷¶ËʹÓÃÆóÒµ¹ÜÀíÆ÷,²¢ÇÒÑ¡Ôñ"ʹÓà Windows Éí·ÝÑéÖ¤"Á¬½ÓÉÏ SQL Server
²Ù×÷²½Öè:
ÔÚÆóÒµ¹ÜÀíÆ÷ÖÐ
--ÓÒ¼üÄãµÄ·þÎñÆ÷ʵÀý(¾ÍÊÇÄÇ ......
Êý¾Ý¿âÉè¼Æ¾Ñé̸
Ò»¸ö³É¹¦µÄ¹ÜÀíϵͳ£¬ÊÇÓÉ£º[50% µÄÒµÎñ + 50% µÄÈí¼þ] Ëù×é³É£¬¶ø 50% µÄ³É¹¦Èí¼þÓÖÓÐ [25% µÄÊý¾Ý¿â + 25% µÄ³ÌÐò] Ëù×é³É£¬Êý¾Ý¿âÉè¼ÆµÄºÃ»µÊÇÒ»¸ö¹Ø¼ü¡£Èç¹û°ÑÆóÒµµÄÊý¾Ý±È×öÉúÃüËù±ØÐèµÄѪҺ£¬ÄÇôÊý¾Ý¿âµÄÉè¼Æ¾ÍÊÇÓ¦ÓÃÖÐ×îÖØÒªµÄÒ»²¿·Ö¡£ÓйØÊý¾Ý¿âÉè¼ÆµÄ²ÄÁϺ¹Å£³ä¶°£¬´óѧѧλ¿Î³ÌÀïÒ²ÓÐ ......
ÔÚÐ¶ÔØVisual Studio 2008 ʱ£¬Ìí¼Ó/ɾ³ý³ÌÐò ÀïÃæÓÐÐí¶àµÄ°²×°Îļþ£¬´ËʱÈç¹ûûÓÐÏÈÐ¶ÔØSQL Server 2005 £¬
¶øÏÈÐ¶ÔØ.Net Framework£¨Ìáʾ£ºÐ¶ÔØ.net FrameworkµÄµÃ°²°æ±¾´Ó¸ßµ½µÍµÄ˳Ðò£©£¬
ÕâʱSQL Server 2005¾Í²»ÄÜÐ¶ÔØ,ɾ³ýProgram files ÏÂÃæµÄ Microsoft SQL Server Îļþ¼ÐҲûÓÐ×÷Óá£
ÖØÐ°²×°ÌáʾÊý¾Ý¿ ......
SQLÖÐonÌõ¼þÓëwhereÌõ¼þµÄÇø±ð
Êý¾Ý¿âÔÚͨ¹ýÁ¬½ÓÁ½ÕÅ»ò¶àÕűíÀ´·µ»Ø¼Ç¼ʱ£¬¶¼»áÉú³ÉÒ»ÕÅÖмäµÄÁÙʱ±í£¬È»ºóÔÙ½«ÕâÕÅÁÙʱ±í·µ»Ø¸øÓû§¡£
ÔÚʹÓÃleft jionʱ£¬onºÍwhereÌõ¼þµÄÇø±ðÈçÏ£º
1¡¢ onÌõ¼þÊÇÔÚÉú³ÉÁÙʱ±íʱʹÓõÄÌõ¼ ......