在java中追加值但从数据库中检索值 [英] Append values in java but values retrieving from database

问题描述

我想从JTextfield中的两个不同的表和显示中追加两个值。



我有一个查询文本字段和另一个引用文本字段。所以当我在询问中加1时，引用变为1_1。这里1是查询，第2 1是报价..如果我想通过第3次查询那么报价应该变成3_2并且这3_2显示在报价文本字段中...第3次查询和第2次报价...第6次查询报价变为6_3 ...所以报价是自动增量数，但报价和enuiry是两个不同的表..所以如何附加这些值？我必须使用哪个查询？



我尝试过：



在这里，我使用密钥释放的行动进行查询

请给出一些技巧。

I want to append two values taking from two different tables and displays in JTextfield.

I have one enquiry textfield and another quotation textfield. so when I put 1 in enquiry, quotation become 1_1. Here 1 is enquiry and 2nd 1 is quotation..if I want to pass 3rd enquiry then quotation should become 3_2 and this 3_2 displays in quotation textfield...3rd for enquiry and 2nd number for quotation ...for 6th enquiry quotation become 6_3...so quotation is auto increment number but quotation and enuiry are two different tables.. so how to append these values? and which query I have to used ?

What I have tried:

Here I used key released action for enquiry
Please give some tricks.

推荐答案

检查出来并适应：向您的数据库询问该唯一ID [ ^ ]

Check this out and adapt: Ask Your Database for that Unique ID[^]

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