Çë½ÌÒ»ÌõsqlÓï¾äÔõôд?
ÓÐÈçÏÂÒ»¸öµ¥´Ê±í(WordList):
Word NewWord Book ×Ö¶Î
look Yes NCE_1
play No NCE_1
while No NCE_1
bad Yes NCE_1
good No NCE_2
new Yes NCE_2
old Yes NCE_2
take Yes NCE_3
ask No NCE_3
name No NCE_4
title No NCE_4
still Yes NCE_4
please Yes NCE_5
sad No NCE_5
happy No NCE_5
girl No NCE_6
boy No NCE_6
ÎÒÒª½«NewWord=Yes, Book= NCE_1; NCE_3; NCE_5µÄËùÓе¥´ÊÑ¡³öÀ´.
ÎÒ³¢ÊÔдÁËÒ»¸ö: sql= select * from WordList where NewWord='Yes' and (Book=NCE_1 or Book=NCE_3 or Book=NCE_5)
µ«ÊDz»ÐÐ.
Çë½Ì¸ÃÔõôд?
select * from tableName where NewWord='yes' and Book in (select Book from TableName)
SQL code
Code h
Ïà¹ØÎÊ´ð£º
ÎÒÓÐÒ»¸ö±í£¬½á¹¹ÊÇÕâÑù¡£
ת³ö µ¥Î» תÈ뵥λ ±ÊÊý ½ð¶î
date(Ö÷) outid(Ö÷) inid(Ö÷) num amt
2009 1 2 1 500 Ϊ 1 µ¥Î» ÔÚ2009Ä ......
´ÓÊý¾Ý¿âÖвéѯһÕűíµÄÊý¾Ý
select ²¿ÃÅ,ÐÕÃû from tb
ÈçºÎ²ÅÄÜÉú³ÉÏÂÃæµÄxml¸ñʽ
XML code:
<folder state="unchecked" label="È«²¿">
¡¡¡¡ <folder state="unchecked&qu ......
ÏÖÔÚÓÐÁ½ÕÅ±í£ºÎÄÕÂÖ÷±íA(articleId,articleTitle)£¬ÎÄÕÂÆÀÂÛ±íB(commentId,articleId,commentTitle)
ÏÖÔÚÎÒÏëʵÏÖÕâÑùµÄ¹¦ÄÜ£ºÁгöÎÄÕÂÁÐ±í£¬ÆäÖÐÿƪÎÄÕ±êÌâÏÂÃæÁгö´ËÎÄÕµÄǰ2¸öÎÄÕÂÆÀÂÛ£¬ÇëÎÊsqlÓï¾äÔõôд°¡ ......
ÏëÓÃSQL CLR×öÈçϵĴ洢¹ý³Ì,µ«ÊÇ·¢ÏÖ±¨´í:
{ÓÉÓÚ´úÂëÒѾ¹ýÓÅ»¯»òÕß±¾»ú¿ò¼ÜλÓÚµ÷ÓöÑÕ»Ö®ÉÏ£¬ÎÞ·¨¼ÆËã±í´ïʽµÄÖµ¡£}
¶øÇÒÈç¹ûÊý¾Ý´Ócase 1ͨ¹ýʱ¾ÍÊÇÕýÈ·µÄ,´Ócase 2ͨ¹ýʱ´íÎó
²¢ÇÒÔÚc ......
±í
id bh
1 10
2 11
3 12
4 15
5 16
6 22
7 25
8 26
9 27
10 28
½«bh°´Á¬Ðø·Ö¶Î³öÀ´·µ»Ø×Ö·û´®£º
10~12£¬15~16£¬22£¬25~28
SQL code:
declare @t tabl ......