CREATE TABLE table_60799 ("Battle" TEXT, "Date" TEXT, "Bulgarian Commander" TEXT, "Byzantine Commander" TEXT, "Result" TEXT)

What is the date of Gavril Radomir's Bulgarian Victory?
SELECT "Date" FROM table_60799 WHERE "Result" = 'bulgarian victory' AND "Bulgarian Commander" = 'gavril radomir'
SELECT "Date" FROM "table_60799" WHERE "Bulgarian Commander" = 'gavril radomir' AND "Result" = 'bulgarian victory'