Find the hours for which the product ‘A’ was out of stock, assuming this is all the data for one day only
Question
Product_inv
| Product ID | is_in_stock | create_dt | |
| A | 1 | 2019-01-01 0:00 | |
| A | 0 | 2019-01-01 10:00 | |
| A | 1 | 2019-01-01 13:00 | |
| A | 0 | 2019-01-01 20:00 | |
| A | 1 | 2019-01-01 23:59 |
Find the hours for which the product ‘A’ was out of stock, assuming this is all the data for one day only?
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Answer ( 1 )
select concat (‘Product’, ‘not’, ‘avaiable between’,time(P2.Create_dt) ,’and’, time(P1.Create_dt)) as Details from Product_Inv P2
join Product_Inv P1 on P2.id+1 = P1.id
where t2.stock =0
/*Assuming the blank column as ID, if the blank column is not id u can create one using autoincrement and execute the given code */