CREATE TABLE table_23224961_1 (season VARCHAR, oberpfalz VARCHAR)

When spvgg vohenstrau is the oberpfalz what is the season?
SELECT season FROM table_23224961_1 WHERE oberpfalz = "SpVgg Vohenstrauß"
SELECT "season" FROM "table_23224961_1" WHERE "SpVgg Vohenstrauß" = "oberpfalz"