Question 67
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***********
****_** ** (1,10,11,20,21,30).*****(4) ** ****** ******** *******.****_**, ****** ** *******, ********.Table 1: film
***_**** | ***_**** ----------------------+-------------------------- ****_** | ******* ***** | **** *********** | **** *******_**** | ******* ********_** | ******** ********_********_** | ******** ******_******** | ******** ******_**** | ******* ****** | ******** ***********_**** | ******* ****** | ****
Table 2: inventory
**** *** ** ******, ********_** ** *** ******* *** ** **** *****.
***_**** | ***_**** --------------+-------------------------- *********_** | ******* ****_** | ******** *****_** | ********
Table 3: rental
***_**** | ***_**** --------------+-------------------------- ******_** | ******* ******_** | ********* **** **** **** *********_** | ******* ********_** | ******** ******_** | ********* **** **** **** *****_** | ********
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