Function queryRowTuple
Execute a one-off SQL SELECT command where you only want the first Row, and place result values into a set of D variables.
This method will throw if any column type is incompatible with the corresponding D variable.
Unlike the other query functions, queryRowTuple will throw
mysql if the result set is empty
(and thus the reference variables passed in cannot be filled).
If the SQL command does not produce a result set (such as INSERT/CREATE/etc),
then mysql will be thrown. Use
exec instead for such commands.
Use this method when you are not going to be using the same command
repeatedly and you are CERTAIN all the data you're sending is properly
escaped. Otherwise consider using mysql.
Prototype
void queryRowTuple(T...)(
Connection conn,
string sql,
ref T args
);
Parameters
| Name | Description |
|---|---|
| conn | An open Connection to the database. |
| sql | The SQL command to be run. |
| args | The variables, taken by reference, to receive the values. |
Parameters
| Name | Description |
|---|---|
| args | A tuple of D variables to receive the results. |