ODBC Driver for HDFS

Build 24.0.9060

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 FileId, ChildrenNum FROM Files WHERE FileId = ?", "119116")
defer rows.Close()
for rows.Next() {
        var (
                FileId string
                ChildrenNum string
        )

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

Reusable Statements

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

stmt, _ := db.Prepare("SELECT FileId, ChildrenNum FROM Files WHERE FileId = ?")
defer stmt.Close()

rows, _ := stmt.Query("119116 1")
defer rows.Close()
for rows.Next() {
        var (
                FileId string
                ChildrenNum string
        )

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

rows, _ = stmt.Query("119116 2")
defer rows.Close()
for rows.Next() {
        var (
                FileId string
                ChildrenNum string
        )

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

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Build 24.0.9060