±í½á¹¹ÐÅÏ¢²éѯ sql server 2005
--sql server 2005
-- 1. ±í½á¹¹ÐÅÏ¢²éѯ
-- ========================================================================
-- ±í½á¹¹ÐÅÏ¢²éѯ
-- ×Þ½¨ 2005.08(ÒýÓÃÇë±£Áô´ËÐÅÏ¢)
-- ========================================================================
SELECT
TableName=CASE WHEN C.column_id=1 THEN O.name ELSE N'' END,
TableDesc=ISNULL(CASE WHEN C.column_id=1 THEN PTB.[value] END,N''),
Column_id=C.column_id,
ColumnName=C.name,
PrimaryKey=ISNULL(IDX.PrimaryKey,N''),
[IDENTITY]=CASE WHEN C.is_identity=1 THEN N'√'ELSE N'' END,
Computed=CASE WHEN C.is_computed=1 THEN N'√'ELSE N'' END,
Type=T.name,
Length=C.max_length,
Precision=C.precision,
Scale=C.scale,
NullAble=CASE WHEN C.is_nullable=1 THEN N'√'ELSE N'' END,
[Default]=ISNULL(D.definition,N''),
ColumnDesc=ISNULL(PFD.[value],N''),
IndexName=ISNULL(IDX.IndexName,N''),
IndexSort=ISNULL(IDX.Sort,N''),
Create_Date=O.Create_Date,
Modify_Date=O.Modify_date
from sys.columns C
INNER JOIN sys.objects O
ON C.[object_id]=O.[object_id]
AND O.type='U'
AND O.is_ms_shipped=0
INNER JOIN sys.types T
ON C.user_type_id=T.user_type_id
LEFT JOIN sys.default_constraints D
ON C.[object_id]=D.parent_object_id
AND C.column_id=D.parent_column_id
&n
Ïà¹ØÎĵµ£º
SQL> var a number
SQL> begin
2 :a :=1000;
3 end;
4 /
PL/SQL procedure successfully completed.
SQL> edit
Wrote file afiedt.buf
1 begin
2 dbms_output.put_line(:a);
3* end;
SQL> /
ͨ¹ýÕâ¸ö´úÂë¿ÉÒÔ¿´³öͨ¹ýpl/sql³õʼ»¯¸³ÖµµÄBind variable¿ÉÒÔ±»ÆäËûPl/sql³ÌÐòµ ......
½üÆÚÒò¹¤×÷ÐèÒª£¬Ï£Íû±È½ÏÈ«ÃæµÄ×ܽáÏÂ
SQL SERVER
Êý¾Ý¿âÐÔÄÜÓÅ»¯Ïà¹ØµÄ×¢ÒâÊÂÏÔÚÍøÉÏËÑË÷ÁËÒ»ÏÂ
,
·¢ÏֺܶàÎÄÕÂ
,
ÓеĶ¼ÁгöÁËÉÏ°ÙÌõ
,
µ«ÊÇ×Ðϸ¿´·¢ÏÖ£¬ÓкܶàËÆÊǶø·Ç»òÕß¹ýʱ
(
¿ÉÄܶÔ
SQL SERVER6.5
ÒÔÇ°µÄ°æ±¾»òÕß
ORACLE
ÊÇÊÊÓõÄ
)
µÄÐÅÏ¢£¬Ö»ºÃ×Ô¼º¸ù¾ÝÒÔÇ°µÄ¾ÑéºÍ²âÊÔ½á¹û½øÐÐ×ܽáÁË¡£
ÎÒ ......
1.×Ö·û´®º¯Êý
³¤¶ÈÓë·ÖÎöÓÃ
datalength(Char_expr) ·µ»Ø×Ö·û´®°üº¬×Ö·ûÊý,µ«²»°üº¬ºóÃæµÄ¿Õ¸ñ
substring(expression,start,length) ²»¶à˵ÁË,È¡×Ó´®
right(char_expr,int_expr) ·µ»Ø×Ö·û´®ÓÒ±ßint_expr¸ö×Ö·û
×Ö·û²Ù×÷Àà
upper(char_expr) תΪ´óд
lower(char_expr) תΪСд
space(int_expr) Éú³Éint_expr¸ ......
ËùνSQL×¢Èëʽ¹¥»÷£¬¾ÍÊǹ¥»÷Õß°ÑSQLÃüÁî²åÈëµ½Web±íµ¥µÄÊäÈëÓò»òÒ³ÃæÇëÇóµÄ²éѯ×Ö·û´®£¬ÆÛÆ·þÎñÆ÷Ö´ÐжñÒâµÄSQLÃüÁî¡£ÔÚijЩ±íµ¥ÖУ¬Óû§ÊäÈëµÄÄÚÈÝÖ±½ÓÓÃÀ´¹¹Ôì(»òÕßÓ°Ïì)¶¯Ì¬SQLÃüÁ»ò×÷Ϊ´æ´¢¹ý³ÌµÄÊäÈë²ÎÊý£¬ÕâÀà±íµ¥ÌرðÈÝÒ×Êܵ½SQL×¢Èëʽ¹¥»÷¡£³£¼ûµÄSQL×¢Èëʽ¹¥»÷¹ý³ÌÀàÈ磺
¡¡¡¡¢Å ij¸öASP.NET WebÓ¦ÓÃÓÐÒ»¸ö ......