Oracle多表查询的方法有以下几种:
SELECT * FROM table1
JOIN table2 ON table1.column = table2.column;
SELECT * FROM table1
WHERE column IN (SELECT column FROM table2);
SELECT column FROM table1
UNION
SELECT column FROM table2;
WITH temp_table AS (
SELECT column FROM table1
)
SELECT * FROM temp_table
JOIN table2 ON temp_table.column = table2.column;
这些方法可以根据具体的需求和数据结构选择最合适的方式进行多表查询。