Subquery multiple columns with Different operand

Question

Hi ,
i have 2 tables as below ,
table 1 ,
date            number    value
20-10-13      1234       500
21-10-13      1235       800
19-10-13     1234       600
19-10-13     1234       700
20-10-13      1235       500
10-10-11      1235       600
20-10-13      1236       500
19-10-12      1236       700
table 2 ,
date            number
20-10-13      1234
20-10-13      1236
how to get the values from the table one when only the number=number in table 2 and start date >= date in table 2 ,
result should be ,
date            number    value
20-10-13      1234       500
21-10-13      1235       800
20-10-13      1235       500
20-10-13      1236       500

Answer 1

where table1.number=table2.number
   and table1.date >= table2.date
You might want to read up:
http://docs.oracle.com/cd/E11882_01/server.112/e41084/statements_10002.htm#sthref6662