Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_22937 ( "Tie no" real, "Team 1" text, "Agg." text, "Team 2" text, "1st leg" text, "2nd leg" text )

### Question ###
How many tie no have team 1 as borac banja luka?

### Accurate SQL ###

SELECT "Tie no" FROM table_22937 WHERE "Team 1" = 'Borac Banja Luka'