Loading data to a ztable from another Z table using ABAP

Hello All,

I have a z table which has 12 entries month wise

table name: Zabc

Month !  CODate ! DDTE !  PREDATE !

01           15.1.15   16.1.15  19.12.15

02           18.2.15     19.2.15  15.1.15

03           22.3.15     21.3.15  18.2.15

04           14.4.15     19.4.15  22.3.15

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My business requirement is such that i need to populate the corresponding values of the month field in the above mentioned table with the fields in anothe z table ZCDE. If i run the PC on jan i need all the data for the january month in the new Ztable . I know we can use Sy-datum in the logic to check the month. Please help me with the logic.

Regards,

Sashankan Ramesh