who is the the mens doubles with mens singles being j rgen koch and womens singles being sabine ploner
CREATE TABLE table_19794 (
    "Year" real,
    "Mens singles" text,
    "Womens singles" text,
    "Mens doubles" text,
    "Womens doubles" text,
    "Mixed doubles" text
)
SELECT "Mens doubles" FROM table_19794 WHERE "Mens singles" = 'Jürgen Koch' AND "Womens singles" = 'Sabine Ploner'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: who is the the mens doubles with mens singles being j rgen koch and womens singles being sabine ploner ### Input: CREATE TABLE table_19794 (
    "Year" real,
    "Mens singles" text,
    "Womens singles" text,
    "Mens doubles" text,
    "Womens doubles" text,
    "Mixed doubles" text
) ### Response: SELECT "Mens doubles" FROM table_19794 WHERE "Mens singles" = 'Jürgen Koch' AND "Womens singles" = 'Sabine Ploner'