Çë½Ì£º¹ØÓÚmysqlµÄ´¥·¢Æ÷
ÎÒÏëÓõ½mysqlµÄ´¥·¢Æ÷¹¦ÄÜ£¬ÔÚphpmyadminÖÐÖ´ÐÐSQLÓï¾ä
SQL code:
drop trigger if exists update_chart;
create trigger update_chart
after update on goods
for each row
begin
insert into chart(price,number) values ('122',23);
end
×ÜÊDZ¨´í£¬Òâ˼ºÃÏñÊÇ˵ÄǸöinsertÓï¾äÓÐÓï·¨´íÎ󣬵«ÊÇÎÒ¼ì²éÁË£¬Õâ¸öÓï¾äȷʵûʲô´íÎó£¬Ö±½ÓÔËÐоÍÄܳɹ¦¡£
ÇëÎÊÕâ¸öÎÊÌâ³öÔÚÄÄÀ
Áí£ºÇëÎÊmysqlµÄ´¥·¢Æ÷ÄÜ·ñÔÚij¸ö ×Ö¶Î updateµÄÖ®ºó±»´¥·¢£¿
Áí£ºÇëÎÊmysqlµÄ´¥·¢Æ÷ÄÜ·ñÔÚij¸ö ×Ö¶Î updateµÄÖ®ºó±»´¥·¢£¿
´¥·¢Æ÷Ö»ÄÜ×îСָ¶¨µ½±í£¬Ã»Óа취ָ¶¨µ½×ֶΣ¬Ö»ÄÜÔÚ´¥·¢Æ÷ÖжÔËùÓÐ×ֶεÄNEW£¬OLDÖµ½øÐÐÅжÏÈ»ºó×ö´¦Àí¡£
ÎÊÌâ¾Í³öÔÚÄãûÓа´ÕÕÊÖ²áÉϵÄÀý×ÓÒ»²½Ò»²½Ç᣹þ¹þ¡£
´íÎóÐÅÏ¢ÊÇ£º
MySQL ·µ»Ø£º
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 7
°´Ò»Â¥µÄÊÔÊÔ¡£ .
ºÜÆæ¹Ö£¬°´ÕÕһ¥ÄÚÈÝ£¬ÔÚmysqlÃüÁîÐÐÖ±½ÓÖ´ÐоÍûÓдíÎ󣬵«ÊÇÔÚphpmyadminÏÂÖ´ÐоÍÒ»Ö±±¨´í
Ïà¹ØÎÊ´ð£º
ÎÒ¶ÔSQL SERVERºÍACCESS±È½ÏÊ죬ËùÒÔÊý¾Ý¿âµÄͨÓûù´¡¶«Î÷¿ÉÒÔ˵¶¼ÕÆÎյIJ¶àÁË£¬ÎÒÏÖÔÚÏëÒªµÄ¾ÍÊÇÒÔÉÏÁ½Êý¾Ý¿âµÄ¶ÀÌØÖ®´¦µÄ½éÉܺÍÓ¦ÓýéÉÜ¡£
ÁíÍâÊé×îºÃ¶ÔÓ¦×îа汾 oracleÊÇ11g°É 10µÄÒ²ÐУ»mysqlÊÇ5.1°É
л ......
ÏÈÉÏ´íÎó
ÎÞ·¨Áª½ÓÊý¾Ý¿â
java.sql.SQLException: Before start of result set
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:910)
at com.mysql.jdbc.ResultSet.checkRowPos(ResultSet.java: ......
ÎÒÒѾ°´Õս̳ÌÉÏÅäÖÃtomcatµÄserver.xml
<Context path = "/POS" docBase = "POS" debug = "5" reloadable = "true" crossContext = "true" workDir = &quo ......
ÎÒÓõÄÊÇÁ¬½Ó³Ø×öµÄ£¬ÅäÁ¬½Ó³ØµÄ·½·¨Ó¦¸ÃûÓÐ´í£¬ÎªÊ²¾ÍÊdzöÏÖÕâÖÖÎÊÌâ
javax.servlet.ServletException: javax.naming.NameNotFoundException: No object bound to name java:comp/env/test
ÇëÎÊ´óÏÀÃÇÕâÊÇÔ ......
try
{
sql::Driver *driver;
sql::Connection *con;
//´´½¨Á¬½Ó
driver = get_driver_instance();
con = driver->connect("tcp://192.168.18.52:3306", "root", "1234 ......