PostgreSQL Support in Go: Difference between revisions
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<code>sql.Open()</code> returns a database handle. The implementation maintains a pool of zero or more underlying connections, and it is safe for concurrent use by multiple goroutines. | <code>sql.Open()</code> returns a database handle. The implementation maintains a pool of zero or more underlying connections, and it is safe for concurrent use by multiple goroutines. | ||
=Create a Table= | |||
=Delete a Table= | |||
=Insert a Row= | |||
=Update a Row= | |||
=Delete a Row= | |||
=Query= |
Revision as of 03:47, 14 October 2023
Internal
Open a Connection
import (
"database/sql"
_ "github.com/lib/pq"
)
...
role := "ovidiu"
password := "something"
databaseHost := "localhost"
databaseName := "testdb"
url := fmt.Sprintf("postgres://%s:%s@%s/%s?sslmode=disable", role, password, databaseHost, databaseName)
db, err := sql.Open("postgres", url)
if err != nil {
// ...
}
defer func() {
if err := db.Close(); err != nil {
// ...
}
}()
err = db.Ping()
if err != nil {
// ...
}
sql.Open()
returns a database handle. The implementation maintains a pool of zero or more underlying connections, and it is safe for concurrent use by multiple goroutines.