我使用以下方法在java中运行准备好的sql语句，但它给我一个语法错误消息：
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException：您的SQL语法中有错误;查看与您的MySQL服务器版本对应的手册，以获得正确的语法，以便在更新temp_test附近使用 内联合ups_bill on temp_test.tracking_number = ups_bill.tra＆＃39;在第6行
有人可以指出可能出现的问题吗？非常感谢！
这里是方法的代码：
private void updateTemp(){
try{
String sql="insert into temp_test (tracking_number, account_number, service, to_name, to_address, to_city, to_state, to_zip, to_zone, invoice_number, invoice_date, ship_date, account_code,entry_type_1,entry_type_2) \n" +
"select distinct trackingnumber1, AccountNumber, chargetypedescription, receiverorganization, receiveraddressline1, receivercity, receiverstate, receiverzipcode, zone, invoicenumber, invoicedate, pickupdate, mid(ref4,1,3),entrytype, entrytype2 \n" +
"from ups_bill \n" +
"where trackingnumber1!= ' ' and ChargeType = 'FRT' and entrytype = 'SHP' and entrycategorycode!='DFC' and entrycategorycode!='DTP' \n" +
"and not exists (select * from temp_test where temp_test.tracking_number=trackingnumber1 and temp_test.invoice_date=invoicedate);\n" +
"update temp_test \n" +
"inner join ups_bill \n" +
"on temp_test.tracking_number=ups_bill.trackingnumber1 \n" +
"set temp_test.account_code=mid(ups_bill.ref2,1,3) \n" +
"where mid(temp_test.account_code,1,1) between 'a' and 'z';\n" +
"update temp_test \n" +
"inner join ups_bill \n" +
"on temp_test.tracking_number=ups_bill.trackingnumber1 \n" +
"set temp_test.account_code=mid(ups_bill.ref1,1,3) \n" +
"where mid(temp_test.account_code,1,1) \n" +
"between 'a' and 'z';\n" +
"update temp_test \n" +
"inner join customer_account \n" +
"on temp_test.account_code=customer_account.customer_code \n" +
"set temp_test.customer_name=\"Dyson Inc\";\n" +
"update temp_test \n" +
"inner join customer_info \n" +
"on temp_test.customer_name=customer_info.customer_name \n" +
"set temp_test.address=customer_info.address_line_1;\n" +
"update temp_test \n" +
"inner join customer_info \n" +
"on temp_test.customer_name=customer_info.customer_name \n" +
"set temp_test.addressline2=customer_info.address_line_2;\n" +
"update temp_test \n" +
"inner join customer_info \n" +
"on temp_test.customer_name=customer_info.customer_name \n" +
"set temp_test.city=customer_info.city;\n" +
"update temp_test \n" +
"inner join customer_info \n" +
"on temp_test.customer_name=customer_info.customer_name \n" +
"set temp_test.state=customer_info.state;\n" +
"update temp_test \n" +
"inner join customer_info \n" +
"on temp_test.customer_name=customer_info.customer_name \n" +
"set temp_test.zip_code=customer_info.zip_code;\n" +
"update temp_test \n" +
"inner join ups_bill \n" +
"on temp_test.tracking_number=ups_bill.trackingnumber1 \n" +
"set temp_test.ref_two=if(ups_bill.ref2!='',ups_bill.ref2,null);\n" +
"update temp_test \n" +
"inner join ups_bill \n" +
"on temp_test.tracking_number=ups_bill.trackingnumber1 \n" +
"set temp_test.ref_one=if(ups_bill.ref1!='',ups_bill.ref1,'');\n" +
"update temp_test \n" +
"inner join ups_bill \n" +
"on temp_test.tracking_number=ups_bill.trackingnumber1 \n" +
"and ups_bill.chargetype=\"FRT\" \n" +
"set temp_test.ups_charge=ups_bill.incentivecredit+ups_bill.billedcharge;\n" +
"update temp_test \n" +
"inner join ups_bill \n" +
"on temp_test.tracking_number=ups_bill.trackingnumber1 and ups_bill.chargetype=\"FSC\" \n" +
"set temp_test.acc_charges=ups_bill.chargeamount-temp_test.ups_charge;\n" +
"update temp_test \n" +
"inner join ups_bill \n" +
"on temp_test.tracking_number=ups_bill.trackingnumber1 and ups_bill.chargetype=\"FSC\" \n" +
"set temp_test.fsc=ups_bill.incentivecredit+ups_bill.billedcharge;\n" +
"update temp_test \n" +
"inner join customer_discount \n" +
"on temp_test.customer_name=customer_discount.customer_name \n" +
"and temp_test.service=customer_discount.service \n" +
"set temp_test.discount=customer_discount.discount;\n" +
"update temp_test \n" +
"inner join customer_discount \n" +
"on temp_test.customer_name=customer_discount.customer_name and temp_test.service=customer_discount.service \n" +
"set temp_test.min_charge=customer_discount.min_charge;\n" +
"update temp_test \n" +
"set temp_test.incentives=if(temp_test.ups_charge*(1-temp_test.discount)>=temp_test.min_charge,temp_test.ups_charge*temp_test.discount,temp_test.ups_charge-temp_test.min_charge);\n" +
"update temp_test \n" +
"set temp_test.billed_charges=temp_test.ups_charge-temp_test.incentives+temp_test.acc_charges+fsc;";
pst=conn.prepareStatement(sql);
pst.executeUpdate();
}catch(Exception e){
JOptionPane.showMessageDialog(null, e);
}
}
答案 0 :(得分：3)
Statement接口（及其子接口PreparedStatement）允许每个语句执行单个查询。您的查询包含多个语句，因此无法执行。您必须准备单独的语句并执行它们。
如果你想要一个全有或全无的行为，你可以用连接启动一个事务，并在执行所有这些事务时执行commit，并在有异常时回滚。
以下是代码的外观框架：
try {
//you state that the transaction needs a commit statement
conn.setAutoCommit(false);
//perform your DML statements
//...
//explicitly state you're committing the transaction
conn.commit();
} catch (Exception e) {
//rollback the transaction
conn.rollback();
//handle the exception...
//Note: always retrieve the stacktrace
//it would be better to use a log or another way to archive it
//this is a pretty basic example
e.printStacktrace(),
}
答案 1 :(得分：2)
你不能发出两个单独的sql语句，用';'分隔在对executeUpdate的同一次调用中。
在这种情况下，插入然后更新。