Home > Backend Development > Golang > How to Avoid SQLite3 Database Locks in Go?

How to Avoid SQLite3 Database Locks in Go?

Susan Sarandon
Release: 2024-12-07 20:53:10
Original
1007 people have browsed it

How to Avoid SQLite3 Database Locks in Go?

SQLite3 Database Lock in Go

When working with SQLite3 databases in Go, developers may encounter the "database is locked" error. This typically occurs when multiple threads attempt to access the same database file simultaneously. However, even when only one connection is established in the code, additional database file handles can still be created.

In the provided code example, the database handle is created twice. First, in the getDatabaseHandle function, and then again in the dosomething function. This can lead to multiple database file handles being open simultaneously, resulting in the "database is locked" error.

To resolve this issue, defer the closing of the query results using defer. In the code example, modify the dosomething function as follows:

func dosomething(database *sql.DB, tx *sql.Tx) error {
    rows, err := database.Query("select * from sometable where name=?", "some")
    if err != nil {
        return err
    }
    defer rows.Close() // Defer closing the query results
    if rows.Next() {
        ...
    }
    // some insert queries
    tx.Commit()
}
Copy after login

By deferring the closing of the query results, Go will automatically close them once the function exits, ensuring that the database file handles are released properly.

The above is the detailed content of How to Avoid SQLite3 Database Locks in Go?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template