ODBC Driver for Greenplum

Build 21.0.7930

Parameterized Statements

The following code example shows how to bind parameters to create parameterized statements.

Single-Use Statements

The Query and Exec functions both accept additional parameters for binding query parameters to values.

rows, _ := db.Query("SELECT ShipName, ShipCity FROM \"template1\".\"public\".Orders WHERE ShipCountry = ?", "USA")
defer rows.Close()
for rows.Next() {
        var (
                ShipName string
                ShipCity string
        )

        rows.Scan(&ShipName, &ShipCity)
        fmt.Printf("ShipName = %s, ShipCity = %s\n", ShipName, ShipCity)
}

Reusable Statements

The Prepare function creates prepared Stmt objects, which can be re-used across multiple Query and Exec calls.

stmt, _ := db.Prepare("SELECT ShipName, ShipCity FROM \"template1\".\"public\".Orders WHERE ShipCountry = ?")
defer stmt.Close()

rows, _ := stmt.Query("USA 1")
defer rows.Close()
for rows.Next() {
        var (
                ShipName string
                ShipCity string
        )

        rows1.Scan(&ShipName, &ShipCity)
        fmt.Printf("ShipName = %s, ShipCity = %s\n", ShipName, ShipCity)
}

rows, _ = stmt.Query("USA 2")
defer rows.Close()
for rows.Next() {
        var (
                ShipName string
                ShipCity string
        )

        rows2.Scan(&ShipName, &ShipCity)
        fmt.Printf("ShipName = %s, ShipCity = %s\n", ShipName, ShipCity)
}

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Build 21.0.7930