sqlite3_column_count —
Number Of Columns In A Result Set
int
sqlite3_column_count(sqlite3_stmt
  *pStmt);
Return the number of columns in the result set returned by the prepared
  statement. If this routine returns 0, that means the prepared statement
  returns no data (for example an UPDATE). However, just because this routine
  returns a positive number does not mean that one or more rows of data will be
  returned. A SELECT statement will always have a positive
  sqlite3_column_count() but depending on the WHERE clause constraints and the
  table content, it might return no rows.