Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Sqlite3³£ÓÃSQLÓï¾ä×ܽᣬһÊÇ·ÀÖ¹×Ô¼ºÍüÁË£¬¶þÊÇ·ÖÏí

ÎÄÖеÄSQL¶¼ÊÇ´ÓÎÒµÄÏîÄ¿ÖÐÖ±½Ócopy¹ýÀ´£¬Òò´ËºÜ¶à±íÃûʲô¶¼ÓÐÁË
//´´½¨±í
"CREATE TABLE FEED_TABLE(FeedID TEXT, Title TEXT, Summary TEXT, Author TEXT, ImageName VARCHAR(21), ImageType TEXT, MaxIndex INT, ImageData BLOB)"
//²éѯ¼Ç¼
"select * form 'table_name'"
"select * form 'table name' where value = '?'"
//²åÈë¼Ç¼
"INSERT INTO FEED_TABLE(FeedID, Title, Summary, ImageName, ImageType, MaxIndex) VALUES('%s', '%s', '%s', '%s', '%s', %d)"
//¸üмǼ
"update 'table_name' 'column_name' = 'value'"
//ɾ³ý¼Ç¼
"DELETE from FAVORITE_TABLE WHERE EntryIndex = %d"
//ɾ³ýËùÓмǼ
"delete from 'table_name'"
//ɾ³ý±í
"drop table 'table_name'"
//²éѯ±í½á¹¹
"select sql from sqlite_master where name = 'table_name'"
callbackµÄµÚÈý¸ö²ÎÊý
ÁíÍâ,sqlite3ÊÇÖ§³ÖÊÂÎñµÄ
int result;
result = sqlite3_exec( db, "begin transaction", 0, 0, &zErrorMsg ); //¿ªÊ¼Ò»¸öÊÂÎñ
result = sqlite3_exec( db, "commit transaction", 0, 0, &zErrorMsg ); //Ìá½»ÊÂÎñ
result = sqlite3_exec( db, "rollback transaction", 0, 0, &zErrorMsg ); //»Ø¹öÊÂÎñ


Ïà¹ØÎĵµ£º

select 1 from ... sqlÓï¾äÖеÄ1´ú±íʲôÒâ˼£¿

 select  1 from ...£¬ sqlÓï¾äÖеÄ1´ú±íʲôÒâ˼£¿²é³öÀ´ÊǸöʲô½á¹û£¿
        select 1 from table;Óëselect anycol(Ä¿µÄ±í¼¯ºÏÖеÄÈÎÒâÒ»ÐУ© from table;Óëselect * from table ´Ó×÷ÓÃÉÏÀ´ËµÊÇûÓвî±ðµÄ£¬¶¼ÊDz鿴ÊÇ·ñÓмǼ£¬Ò»°ãÊÇ×÷Ìõ¼þ²éѯÓõġ£select 1 from Ö ......

ÈçºÎ²é¿´SQL Server ²¹¶¡µÄ°æ±¾

ÈçºÎ²é¿´SQL Server ²¹¶¡µÄ°æ±¾   [http://blog.sina.com.cn/s/blog_4a5bf0b7010008bz.html]
ÈçºÎ²é¿´SQL Server ²¹¶¡µÄ°æ±¾£¿Õâ¸öÌâÄ¿ÌýÆðÀ´Ê®·ÖÞÖ¿Ú£¬Ó¢ÎÄÓ¦¸ÃÕâÑùд“How to find the service pack version installed on SQL Server using”£¬Õâ¸öÎÊÌâÎÒÒ»Ö±ÔÚÕÒ£¬SQL ServerһֱûÓÐÏñÆ ......

ms sql ³£ÓòÙ×÷Óï¾ä

MS SQLµÄһЩ¾­µä³£ÓòÙ×÷Óï¾ä»ã×Ü  ¡¾http://hi.baidu.com/kychen88/blog/item/b3c8e7d960821b3c32fa1cee.html¡¿
1.°´ÐÕÊϱʻ­ÅÅÐò:
Select * from TableName Order By CustomerName Collate Chinese_PRC_Stroke_ci_as
2.Êý¾Ý¿â¼ÓÃÜ:
select encrypt('ԭʼÃÜÂë')
select pwdencrypt('ԭʼÃÜÂë')
select pwdcomp ......

pl/sql³£Óú¯Êý

1¡£Sysdate µ±Ç°ÈÕÆÚºÍʱ¼ä
SQL> Select sysdate from dual;
SYSDATE
----------
21-6ÔÂ -05
2¡£Last_day ±¾ÔÂ×îºóÒ»Ìì
SQL> Select last_day(sysdate) from dual;
LAST_DAY(S
----------
30-6ÔÂ -05
3¡£Add_months(d,n) µ±Ç°ÈÕÆÚdºóÍÆn¸öÔÂ
ÓÃÓÚ´ÓÒ»¸öÈÕÆÚÖµÔö¼Ó»ò¼õÉÙһЩÔ·Ý
date_value:=add_mont ......

SQL×Ö·û´®²Ù×÷º¯Êý´óÈ«

selectÓï¾äÖÐÖ»ÄÜʹÓÃsqlº¯Êý¶Ô×ֶνøÐвÙ×÷£¨Á´½Ósql server£©£¬
select ×Ö¶Î1 from ±í1 where ×Ö¶Î1.IndexOf("ÔÆ")=1;
ÕâÌõÓï¾ä²»¶ÔµÄÔ­ÒòÊÇindexof£¨£©º¯Êý²»ÊÇsqlº¯Êý£¬¸Ä³Ésql¶ÔÓ¦µÄº¯Êý¾Í¿ÉÒÔÁË¡£
left£¨£©ÊÇsqlº¯Êý¡£
select ×Ö¶Î1 from ±í1 where charindex£¨'ÔÆ',×Ö¶Î1£©=1;
×Ö·û´®º¯Êý¶Ô¶þ½øÖÆÊý¾Ý¡¢×Ö·û´®º ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ