Thinkphp uses db or model

When developing using the ThinkPHP framework, developers often face a choice: use database operations (db) or models (model).

Database operation is to directly operate the database. SQL statements can be written directly, making the operation more flexible. The model operates the database by encapsulating it, providing a more user-friendly method of adding, deleting, modifying, and searching.

So, which method should you choose to use? Let’s discuss it below.

1. Use database operations

1. Advantages

(1) Flexibility: Using database operations, you can flexibly write SQL statements, and you can complete various tasks by splicing strings, etc. complex query operations.

(2) High efficiency: Database operations are directly oriented to the database and are executed relatively quickly.

(3) Wide applicability: Database operations are suitable for complex queries, joint table queries and other operations, and have good adaptability to various non-standard query requirements.

2. Disadvantages

(1) Difficulty: Database operations require developers to have a certain degree of mastery of SQL statements, and there may be a certain learning curve for novices.

(2) High code complexity: SQL statements need to be written manually, and the complexity of the code will increase accordingly.

(3) Not easy to maintain: When the SQL statement needs to be modified, the SQL statement may need to be rewritten, which increases the difficulty of maintaining the code.

2. Using the model

1. Advantages

(1) Easy to use: The model encapsulates the operations on the database and provides a series of addition, deletion, modification and query methods. Use More convenient.

(2) Code conciseness: Using models can make the code more concise and reduce repeated code.

(3) Easy maintenance: When you need to modify the query method or table structure, you only need to modify the corresponding method in the model, which greatly reduces the difficulty of code maintenance.

2. Disadvantages

(1) The efficiency is not as good as database operations: the model is implemented by encapsulating database operations, and the execution speed is relatively slow.

(2) Not flexible enough for complex queries: Although the model provides some conventional query methods, it may not be flexible enough for complex query requirements and requires the use of database operations.

(3) Cannot meet high concurrency requirements: In high concurrency scenarios, performance problems may occur when using the model, and some caching technologies need to be used to solve it.

3. Comprehensive comparison

Which method to use needs to be chosen based on specific business needs.

If you need to perform complex queries, joint table queries, etc., you can give priority to using database operations.

If you need to perform operations such as adding, deleting, modifying, and checking, you can choose to use the model.

When there is a performance bottleneck in the database, you can consider using caching technology to solve it.

In short, choosing the appropriate way to operate the database can improve development efficiency and system performance.

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