Task: Text to Code
Input (English): Step 1: For each row in artist table, find the corresponding rows in volume table.
Step 2: find Issue_Date of the results of step 1 whose Age equals 23 or Age equals 34
Output (English): SELECT T2.Issue_Date FROM artist AS T1 JOIN volume AS T2 ON T1.Artist_ID = T2.Artist_ID WHERE T1.Age = 34 OR T1.Age = 23