Sqlite sync

From UVOO Tech Wiki
Revision as of 00:18, 1 April 2024 by Busk (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
package main

import (
    "database/sql"
    "fmt"
    _ "github.com/mattn/go-sqlite3"
)

func main() {
    // Open source SQLite database
    sourceDB, err := sql.Open("sqlite3", "/path/to/source.db")
    if err != nil {
        fmt.Println("Error opening source database:", err)
        return
    }
    defer sourceDB.Close()

    // Open destination SQLite database
    destDB, err := sql.Open("sqlite3", "/path/to/destination.db")
    if err != nil {
        fmt.Println("Error opening destination database:", err)
        return
    }
    defer destDB.Close()

    // Query data from source database
    rows, err := sourceDB.Query("SELECT * FROM your_table")
    if err != nil {
        fmt.Println("Error querying source database:", err)
        return
    }
    defer rows.Close()

    // Iterate over rows and insert into destination database
    for rows.Next() {
        var id int
        var name string
        // Assuming your_table has columns id and name
        err = rows.Scan(&id, &name)
        if err != nil {
            fmt.Println("Error scanning row:", err)
            continue
        }

        // Insert or update into destination database
        _, err = destDB.Exec("INSERT OR REPLACE INTO your_table (id, name) VALUES (?, ?)", id, name)
        if err != nil {
            fmt.Println("Error inserting into destination database:", err)
            continue
        }
    }
    if err = rows.Err(); err != nil {
        fmt.Println("Error iterating over rows:", err)
        return
    }

    fmt.Println("Sync completed successfully!")
}

sqlx

package main

import (
    "fmt"
    "github.com/jmoiron/sqlx"
    _ "github.com/mattn/go-sqlite3"
)

func main() {
    // Open source SQLite database
    sourceDB, err := sqlx.Open("sqlite3", "/path/to/source.db")
    if err != nil {
        fmt.Println("Error opening source database:", err)
        return
    }
    defer sourceDB.Close()

    // Open destination SQLite database
    destDB, err := sqlx.Open("sqlite3", "/path/to/destination.db")
    if err != nil {
        fmt.Println("Error opening destination database:", err)
        return
    }
    defer destDB.Close()

    // Define a struct to represent your table
    type YourTable struct {
        ID   int    `db:"id"`
        Name string `db:"name"`
    }

    // Query data from source database
    var data []YourTable
    err = sourceDB.Select(&data, "SELECT * FROM your_table")
    if err != nil {
        fmt.Println("Error querying source database:", err)
        return
    }

    // Insert or update into destination database
    for _, row := range data {
        _, err = destDB.NamedExec("INSERT OR REPLACE INTO your_table (id, name) VALUES (:id, :name)", row)
        if err != nil {
            fmt.Println("Error inserting into destination database:", err)
            continue
        }
    }

    fmt.Println("Sync completed successfully!")
}