Programmer Group

1. DB facade (original lookup) // query $objectArray=DB::select('select * from student'); foreach ($objectArray as $obj){ echo $obj->id; } // insert $bool=DB::insert('insert into student(name,age) values(?,?)',['tom',18]); // modify $num=DB::update('update student se ...

 2019-07-30    0     0 1. Introduction Oracle Database, also known as Oracle RDBMS, or Oracle for short.Oracle is a relational database management system. With docker, it is no longer difficult to install oracle, just a few steps. It is important to note that before referring to this article, you need to have a foundation for wo ...

We know that the data displayed in the front desk usually conveys information encapsulated by some list s, but in the face of a large number of data, it is impossible to display on one page. We need to paginate. In order to form a good interface, data and pages need to be processed and interacted in front of and behind the scenes. Starting wi ...

Preface For PHP frameworks, whether it's yii, symfony or laravel, everyone is involved in their work. For the resource bundles vendor folders, entry files (index.php or app.php) stored in the framework, people also meet with them every day. But are you really familiar with these files/folders? How does a complete project evolve from a pure fram ...

Database Storage 1 Store data using Shared Preferences Scope of application: save a small amount of data, and the format of these data is very simple: string type, basic type of value. For example, application configuration information (such as whether to turn on sound effects, whether to use vibrat ...

Background The advantages of MyBatis-X persistent layer architecture are simple configuration, flexible one-to-one, one-to-many join table queries. After a join table query configuration, when the related tables have added, changed or subtracted fields, the join table query does not need to be modif ...

reflex Article directory reflex Summary Definition purpose Relevant Classes of Reflection Mechanisms Class Class Class Field Class Method Constructor class 1. Several Ways to Get Class Objects Student object Several Methods of Obtaining Class Objects 2. Get the construction method and use it 3. ...

Introduction to Druid Druid is a very good database connection pool. In terms of function, performance and extensibility, it surpasses other database connection pools, including DBCP, C3P0, BoneCP, Proxool and JBoss Data Source. Druid has deployed more than 600 applications in Alibaba, after more than a year of rigorous deployment of large-scal ...

Catalog Chapter XVI. Primary Knowledge Database I. Database II. Composition of database Classification of databases IV. Unloading database 5. Installation of databases 6. Connecting database 7. Viewing User Information 8. Basic operation of database 9. Basic ope ...

Introduction to Druid Druid is a project on Alibaba Open Source Platform. The whole project is composed of database connection pool, plug-in framework and SQL parser. The main purpose of this project is to extend some limitations of JDBC and enable programmers to achieve some special requirements, such as requesting credentials from key servic ...