what need to

In today's project, we need to get the newly inserted auto-growth primary key values:pstmt=conn.preparestatement (SQL);... rs =pstmt.getgeneratedkeys ();Who knows the error:Generated keys not requested. You need to specify Statement.return_generated_

The author is the operation and maintenance engineer, a little bit of knowledge of Linux, now say what you need to master what aspects of the tool bar. When it comes to tools, it can be said to be a skill, which is what we call a tool in the line, a

If you are a programmer, then your good times are coming. Computer jobs will grow by 8% over the next seven years, according to the U.S. Bureau of Labor Statistics. If you're good at writing code, you can pay up to $300 an hour or more.  to get a

It can be said that the era of web1.0 is the era of form, web2.0 era is the era of Ajax, and web3.0. I think it has begun, it should be the era of Web engineering. Every technological innovation is not the negation of the technology of the previous

About testing, welcome to chat QQ Group: 755431660 Have you ever experienced a situation where you feel special and busy every day, but when you go to bed at night, you can't remember what you're doing today. Maybe it is too much to do this day, too

the role of foreign keysThe main role of foreign keys is to maintain data consistency and integrity.About foreign keys, I have some of my own understanding, but I do not know whether it is correct, for example to express my view: If you need to

Why do you need to move this button three pixels and the button three pixels Every 1 ~ The speed of translating an article within two weeks, and translating articles related to user experience design, interaction design, and Internet product design.

Based on my work experience, the author provides some suggestions for enterprise network administrators to protect their network security and help them defend against network intrusion, malware, and spam. Define the appropriate permissions for the

This is a (long) blog that records the migration of a large section of Python/cython code to the Go language experience. If you want to know everything about the whole story, background, etc., please read on. If you are interested only in what you

I got two days of ECShop and got in touch with some smarty templates. I didn't learn smarty, but I used it in ECShop. I don't know. Is there any need to learn smarty for the current trend ?? I got two days of ECShop and got in touch with some smarty

Php programmers need to know what LINUX knowledge, recent interviews, LINUX will only install software to modify files, and so on. Now they generally need to know what LINUX knowledge php programmers need to know, for a recent interview, LINUX only

Premise: Have you split the service into multiple microservice questions? Does the client and WEB need to maintain two sets of api code? Is it reasonable to use cross-domain or internal service forwarding if only one api is maintained? Premise: Have

1. Why do I need a function?1) Maximized code reuse and minimized code redundancyLet's give a simple example: addition>>> a=1>>> b=1>>> c=a+b>>> c2>>> d=1>>> f=1>>> e=d+f >>> E2From the above code we see that if we want to do multiple additions, we

It is found that almost all Web sites now have UrlEncode operations on Chinese characters and special characters in URLs, namely:http://hi.baidu.com/%BE%B2%D0%C4%C0%CF%C8%CB/creat/blog/This way, in the middle of the form, it is definitely my login

The traditional procedure for running an ASP. NET Web site or WEBAPI is to install Libgdiplus, install Mono, and then install Jexus. In this process, although it is easy to install Jexus, it is relatively time-consuming and laborious to install mono.

When you need to write a tedious interface but still a static page, you will probably use the Xib"Exception: When creating a file that inherits from UIView, without the tick option to automatically generate XIB, developers need to manually new a xib

Why do I need to enable two-step verification for an Apple ID? Why should I use two-step verification for my Apple ID?Apple ID is the key for you to perform many Apple-related tasks. Please note that only you can access your account details, update

Do I need to add the 'symbol to the mysql statement? 'The mysql statement with this symbol can avoid errors when the field name or table name is a keyword of the SQL statement. However, this system can only use the MYSQL database. if you want to

The first time I contacted MVC Architecture is the use of the thinkphp framework。 I personally think this architecture is very bloated (personal feeling) and not suitable for development. (Not a large company, own personal development). that you

What do I need to do to build a wordpress website. What do I need to do to build a wordpress website? today I made my own personal website for building wordpress: before Erfei logs, due to server problems, what do I need to do to build a wordpress