SQL HexString Óë Binary »¥»»
HexString to Binary:
DECLARE @y CHAR(34)
SET @y = '0x499104dc92dd27499da9ad8f56dcb437'
DECLARE @x BINARY(16)
DECLARE @sql NVARCHAR(200)
SET @sql = 'SELECT @x = ' + @y
EXEC sp_executesql
@sql,
N'@x BINARY(16) OUTPUT',
@x OUTPUT
SELECT @x
Binary to HexString:
DECLARE @a VARBINARY(20)
SET @a=0x7fd81de7360fb53649412521d06249cc69357d78
SELECT @a
SELECT master.dbo.fn_varbintohexstr(@a)
Ïà¹ØÎĵµ£º
SQLÖÐWHERE×Ó¾äÖпÉÒÔÀûÓÃLIKEÀ´Æ¥ÅäÏàËÆµÄÊý¾ÝÏµ±Ê±Îҵõ½µÄ½áÂÛÊÇ¿ÉÒÔʹÓÃ"%"À´Æ¥Åä×Ö·û´®£¬ÔÚSPUFIÖÐʹÓ㬵ÄÈ·¿ÉÒԵõ½×Ö·û´®Æ¥ÅäµÄЧ¹û¡£È磺
SELECT * from TEST
WHERE TESTID LIKE "CZX%";
ÉÏÃæÕâ¾äÔÚSPUFIÖÐÌ ......
Ïò¸ßÊÖÇë½ÌÒ»¸öÎÊÌâ:
µ±ÎÒÖ´ÐÐ:
use master
exec xp_cmdshell 'osql /S musqlserver /U sa /P mypwd /d haodb /Q "select top 10 * from trandetail" /o C:\my1.xls'
ÒÔÉÏÖ´Ðгɹ¦,»á²úÉúÐÂÎļþ:C:\my1.xls'
È»ºóÎÒÏ뽫´ËÎļþÖ±½Ócopyµ½Áíһ̨µçÄÔÖÐ[Òѽ¨Á¬½Ó]
Ö´ÐÐ
......
½«ÁÐת»»ÎªÐУ¬Ï൱ÓÚ½«±í½á¹¹Ðýת90¶È
T_Student ±í
Stud_ID
Sex
Name
1
ÄÐ
Tom
2
Å®
Anne
3
ÄÐ
Jack
Ö´ÐÐ: Exec proColumnToRow ’T_Student’,’Name’,’ New_ID’
ת»»ºóµÄ±í
New_ID
Tom
Anne
Jack
Stud_ID
1
2
3
Sex
ÄÐ
Å®
ÄÐ
& ......
±¾ÎÄ´ÓÊý¾Ý¿âÉè¼Æ¡¢¿ª·¢¡¢DBA¹ÜÀíµÈËĸö·½ÃæÐðÊöÁËSQL2005ÓëSQL2000Á½¸ö°æ±¾¼äµÄ¸Ä½ø¡£
¡¡¡¡Ò»¡¢Êý¾Ý¿âÉè¼Æ·½Ãæ
¡¡
¡¡1¡¢×Ö¶ÎÀàÐÍ¡£
¡¡¡¡varchar(max)
varchar(max)ÀàÐ͵ÄÒýÈë´ó´óµÄÌá¸ßÁ˱à³ÌµÄЧÂÊ£¬¿ÉÒÔʹÓÃ×Ö·û´®º¯Êý¶ÔCLOBÀàÐͽøÐвÙ×÷£¬ÕâÊÇÒ»¸öÁÁµã¡£µ«ÊÇÕâ¾ÍÒý·¢Á˶Ôvarchar
ºÍcharЧÂÊÌÖÂÛµÄÀÏÎÊÌâ¡£µ½µ ......
½éÉÜGROUP BY ºÍ HAVING ×Ó¾äǰ£¬ÎÒÃDZØÐèÏȽ²½²sqlÓïÑÔÖÐÒ»ÖÖÌØÊâµÄº¯Êý:¾ÛºÏº¯Êý£¬ÀýÈçSUM, COUNT, MAX, AVGµÈ¡£ÕâЩº¯ÊýºÍÆäËüº¯ÊýµÄ¸ù±¾Çø±ð¾ÍÊÇËüÃÇÒ»°ã×÷ÓÃÔÚ¶àÌõ¼Ç¼ÉÏ¡£
SELECT SUM(population) from bbc
ÕâÀïµÄSUM×÷ÓÃÔÚËùÓзµ»Ø¼Ç¼µÄpopulation×Ö¶ÎÉÏ£¬½á¹û¾ÍÊǸòéѯֻ·µ»ØÒ»¸ö½á¹û£¬¼´ËùÓйú¼ÒµÄ×ÜÈË¿ ......