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package main
import (
"database/sql"
"fmt"
"io/ioutil"
"os"
"path/filepath"
_ "modernc.org/sqlite"
)
func main() {
if err := main1(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func main1() error {
dir, err := ioutil.TempDir("", "test-")
if err != nil {
return err
}
defer os.RemoveAll(dir)
fn := filepath.Join(dir, "db")
db, err := sql.Open("sqlite", fn)
if err != nil {
return err
}
if _, err = db.Exec(`
drop table if exists t;
create table t(i);
insert into t values(42), (314);
`); err != nil {
return err
}
rows, err := db.Query("select 3*i from t order by i;")
if err != nil {
return err
}
for rows.Next() {
var i int
if err = rows.Scan(&i); err != nil {
return err
}
fmt.Println(i)
}
if err = rows.Err(); err != nil {
return err
}
if err = db.Close(); err != nil {
return err
}
fi, err := os.Stat(fn)
if err != nil {
return err
}
fmt.Printf("%s size: %v\n", fn, fi.Size())
return nil
}
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