ADOÖÐsqlserver´æ´¢¹ý³ÌʹÓÃ
ADOÖÐsqlserver´æ´¢¹ý³ÌʹÓà ÊÕ²Ø
´ÓADOÖеõ½¶à¸ö¼Ç¼¼¯ÒÔ¼°ÔõôÑùÔÚADOÖÐʹÓÃsql server µÄ´æ´¢¹ý³Ì
DataType Value Length Data Length
BIGINT 996857543543543 15 8
INT 543543 6 4
SMALLINT 32765 5 2
TINYINT 254 3 1
BIT True 1 1
DECIMAL 765.5432321 11 9
NUMERIC 432.6544 8 5
MONEY 543.1234 6 8
SMALLMONEY 543.1234 6 4
FLOAT 5.4E+54 8 8
REAL 2.43E+24 9 4
DATETIME 8/31/2003 11:55:25 PM 19 8
SMALLDATETIME 8/31/2003 11:55:00 PM 19 4
CHAR QWE 3 4
VARCHAR Variable! 9 9
TEXT 307
NCHAR WIDE 4 8
NVARCHAR 0 0
NTEXT 614
GUID {58F94A80-B839-4B35-B73C-7F4B4D336C3C} 36 16
Return Value: 0
CREATE PROCEDURE "dbo"."DataTypeTester"
@myBigInt bigint
, @myInt int
, @mySmallint smallint
, @myTinyint tinyint
, @myBit bit
, @myDecimal decimal(10, 7)
, @myNumeric numeric(7, 4)
, @myMoney money
, @mySmallMoney smallmoney
, @myFloat float
, @myReal real
, @myDatetime datetime
, @mySmallDatetime smalldatetime
, @myChar char(4)
, @myVarchar varchar(10)
, @myText text
, @myNChar nchar(4)
, @myNVarchar nvarchar(10)
, @myNText ntext
, @myGuid uniqueidentifier
AS
SELECT 'BIGINT' "DataType", @myBigInt "Value" , LEN(@myBigInt) "Length" , DATALENGTH(@myBigInt) "Data Length"
SELECT 'INT' , @myInt &nb
Ïà¹ØÎĵµ£º
SqlServer,Oracle ³£Óú¯Êý±È½Ï
Êýѧº¯Êý£º
1.¾ø¶ÔÖµ
¡¡¡¡ Sql Server: SELECT abs(-1) value
¡¡¡¡ Oracle: SELECT abs(-1) value from dual
2.È¡Õû(´ó)
¡¡¡¡ Sql Server: SELECT ceiling(-1.001) value
¡¡¡¡ Oracle: SELECT ceil(-1.001) value from dual
3.È¡Õû£¨Ð¡£©
¡¡¡¡ Sql Server: SELECT f ......
¹«Ë¾×éÖ¯SQLˮƽ¿¼ÊÔ£¬¿´ÁËд½Ì²Ä£¬Ð´Á˵ã×ܽᷢÉÏÀ´¸ú´ó¼Ò·ÖÏí¡£
ÎÒ¹«Ë¾Ê¹ÓõÄÊÇSybase ASE12.5£¬ËùÒÔÏÂÃæµÄÒ»Ð©ÌØÐÔÊÇÕë¶ÔSybase ASEµÄ¡£
Ò»£ºSQL Bisic
1£ºSQL(Structured Quary Language)ÌØÐÔ£º
a£º±ê×¼»¯
b£º·Ç¹ý³Ì»¯µÄ
c£º¿ÉÓÅ»¯µÄ
d£ºÃæÏò¼¯ºÏ²Ù×÷µÄ
2£ºASEÖеÄÊý¾ÝÀàÐÍ
a£ºNumberic
b£ºCharacter
c£ºDa ......
ÏÖÏó£º
ÔÚ×°SqlServer 2000ʱ£¬ÀÏÊǵ¯³ö“ÁíÒ»¸öʵÀýÕýÔÚÔËÐДµÄ´íÎóÐÅÏ¢£¬½áÊøÁ˽ø³ÌÀïsqlµÄÏà¹ØÎļþºÍɾ³ýÒÔǰ°²×°¹ýµÄ°²×°Ä¿Â¼ÏµÄsqlÎļþºó£¬ÖØÆôµçÄÔºó°²×°»¹ÊdzöÏÖÕâÖÖÇé¿ö¡£
´¦Àí°ì·¨£º
ÕâÖÖÇé¿öÒ»°ãÊÇSqlServer 2000Ð¶ÔØ²»ÍêÈ«Ôì³ÉµÄ¡£
ÔÚ“¿ªÊ¼-ÔËÐДÖÐÊäÈëregeditµ÷³ö×¢²á±í£¬ÕÒµ½£ ......
SQL ServerÊý¾Ý¿âÉè¼Æ±íºÍ×Ö¶Î
1. Ôʼµ¥¾ÝÓëʵÌåÖ®¼äµÄ¹ØÏµ
¡¡¡¡¿ÉÒÔÊÇÒ»¶ÔÒ»¡¢Ò»¶Ô¶à¡¢¶à¶Ô¶àµÄ¹ØÏµ¡£ÔÚÒ»°ãÇé¿öÏ£¬ËüÃÇÊÇÒ»¶ÔÒ»µÄ¹ØÏµ£º¼´Ò»ÕÅÔʼµ¥¾Ý¶ÔÓ¦ÇÒÖ»¶ÔÓ¦Ò»¸öʵÌå¡£ÔÚÌØÊâÇé¿öÏ£¬ËüÃÇ¿ÉÄÜÊÇÒ»¶Ô¶à»ò¶à¶ÔÒ»µÄ¹ØÏµ£¬¼´Ò»ÕÅÔʼµ¥Ö¤¶ÔÓ¦¶à¸öʵÌ壬»ò¶àÕÅÔʼµ¥Ö¤¶ÔÓ¦Ò»¸öʵÌå¡£ÕâÀïµÄʵÌå¿ÉÒÔÀí½âΪ»ù±¾±í¡£Ã ......
1¡¢ÊµÀýÒ»£º
public void SqlConnectionOpen()
{
SqlConnection myConn=new SqlConnection();
myConn.ConnectionString="server=(local);database=pubs;Trusted_Connection=yes";
......