Go连接并操作SQLite数据库基本步骤

go get github.com/mattn/go-sqlite3

package main

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

func main() {
    db, err := sql.Open("sqlite3", "./test.db")
    if err != nil {
        fmt.Println(err)
    }
    defer db.Close()
}

stmt, err := db.Prepare("CREATE TABLE IF NOT EXISTS userinfo(username TEXT, departname TEXT, created DATE)")
if err != nil {
    log.Fatalln(err)
}
_, err = stmt.Exec()
if err != nil {
    log.Fatalln(err)
}

stmt, err := db.Prepare("INSERT INTO userinfo(username, departname, created) values(?,?,?)")
if err != nil {
    log.Fatalln(err)
}

res, err := stmt.Exec("astaxie", "tech", "2019-12-09")
if err != nil {
    log.Fatalln(err)
}

id, err := res.LastInsertId()

if err != nil {
    log.Fatalln(err)
}

fmt.Println(id)

rows, err := db.Query("SELECT * FROM userinfo")
columns, err := rows.Columns()
values := make([]sql.RawBytes, len(columns))
for i, _ := range values {
    values[i] = new(sql.RawBytes)
}
var value string
for rows.Next() {
    err = rows.Scan(values...)
    if err != nil {
        log.Fatalln(err)
    }
    for _, val := range values {
        if val == nil {
            value = "NULL"
        } else {
            value = string(*val)
        }
    }
    fmt.Println(value)
}
if err = rows.Err(); err != nil {
    log.Fatalln(err)
}

stmt, err := db.Prepare("update userinfo set username=? where uid=?")
if err != nil {

updateRes, err := stmt.Exec("astaxieupdate", lastInsertID)
if err != nil {
    log.Fatalln(err)
}

affect, err := updateRes.RowsAffected()

if err != nil {
    log.Fatalln(err)
}
fmt.Println(affect)

stmt, err := db.Prepare("DELETE FROM userinfo WHERE uid=?")
if err != nil {

delRes, err := stmt.Exec(lastInsertID)
if err != nil {
    log.Fatalln(err)
}

affect, err := delRes.RowsAffected()
if err != nil {
    log.Fatalln(err)
}

fmt.Println(affect)