package main import ( "database/sql" "fmt" _ "github.com/mattn/go-sqlite3" "log" "os" ) func main() { os.Remove("./foo.db") db, err := sql.Open("sqlite3", "./foo.db") if err != nil { log.Fatal(err) } defer db.Close() sqlStmt := ` create table foo (id integer not null primary key, name text); delete from foo; ` _, err = db.Exec(sqlStmt) if err != nil { log.Printf("%q: %s\n", err, sqlStmt) return } tx, err := db.Begin() if err != nil { log.Fatal(err) } stmt, err := tx.Prepare("insert into foo(id, name) values(?, ?)") if err != nil { log.Fatal(err) } defer stmt.Close() for i := 0; i < 100; i++ { _, err = stmt.Exec(i, fmt.Sprintf("こんにちわ世界%03d", i)) if err != nil { log.Fatal(err) } } tx.Commit() rows, err := db.Query("select id, name from foo") if err != nil { log.Fatal(err) } defer rows.Close() for rows.Next() { var id int var name string rows.Scan(&id, &name) fmt.Println(id, name) } stmt, err = db.Prepare("select name from foo where id = ?") if err != nil { log.Fatal(err) } defer stmt.Close() var name string err = stmt.QueryRow("3").Scan(&name) if err != nil { log.Fatal(err) } fmt.Println(name) _, err = db.Exec("delete from foo") if err != nil { log.Fatal(err) } _, err = db.Exec("insert into foo(id, name) values(1, 'foo'), (2, 'bar'), (3, 'baz')") if err != nil { log.Fatal(err) } rows, err = db.Query("select id, name from foo") if err != nil { log.Fatal(err) } defer rows.Close() for rows.Next() { var id int var name string rows.Scan(&id, &name) fmt.Println(id, name) } }