type Out

Out 可用于从存储过程检索 OUTPUT 值参数。

Out结构如下：

type Out struct {

// Dest is a pointer to the value that will be set to the result of the
// stored procedure's OUTPUT parameter.
Dest interface{}

// In is whether the parameter is an INOUT parameter. If so, the input value to the stored
// procedure is the dereferenced value of Dest's pointer, which is then replaced with
// the output value.
In bool
// contains filtered or unexported fields
            }

用法示例：

var outArg string
            _, err := db.ExecContext(ctx, "ProcName", sql.Named("Arg1", sql.Out{Dest: &outArg}))