80 lines
1.9 KiB
Go
80 lines
1.9 KiB
Go
package main
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import _ "github.com/bmizerany/pq"
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import "database/sql"
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import "time"
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import "fmt"
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func main() {
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conf := "dbname=gobyexample sslmode=disable"
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db, openErr := sql.Open("postgres", conf)
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if openErr != nil {
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panic(openErr)
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}
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defer db.Close()
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fmt.Println(db)
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createRep, createErr := db.Exec(
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`CREATE TABLE items
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(a int, b float, c boolean,
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d text, e timestamp with time zone)`)
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if createErr != nil {
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panic(createErr)
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}
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fmt.Println(createRep)
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insertRep, insertErr := db.Exec(
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`INSERT INTO items VALUES
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(1, 2.0, false,
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'string', '2000-01-01T01:02:03Z')`)
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if insertErr != nil {
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panic(insertErr)
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}
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fmt.Println(insertRep)
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timeFmt := time.RFC3339
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t1, _ := time.Parse(timeFmt, "2000-04-08T03:02:01Z")
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t2, _ := time.Parse(timeFmt, "2007-03-02T10:15:45Z")
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minsertRep, minsertErr := db.Exec(
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`Insert INTO items VALUES
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($1, $2, $3, $4, $5),
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($6, $7, $8, $9, $10)`,
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3, 7.0, true, "more", t1,
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5, 1.0, false, "less", t2)
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if minsertErr != nil {
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panic(minsertErr)
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}
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num, _ := minsertRep.RowsAffected()
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fmt.Println(num)
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rows, selectErr := db.Query("SELECT * FROM items")
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if selectErr != nil {
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panic(selectErr)
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}
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defer rows.Close()
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for rows.Next() {
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var r1 int
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var r2 float64
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var r3 bool
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var r4 string
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var r5 time.Time
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rows.Scan(&r1, &r2, &r3, &r4, &r5)
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fmt.Println(r1, r2, r3, r4, r5)
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}
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rowsErr := rows.Err()
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if rowsErr != nil {
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panic(rowsErr)
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}
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dropRep, dropErr := db.Exec("DROP TABLE items")
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if dropErr != nil {
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panic(dropErr)
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}
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fmt.Println(dropRep)
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}
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// todo: connection pooling & concurrency
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// todo: re-connection
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// todo: errors
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// todo: database_url
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