On 07/30/2018 11:40 PM, hmidi slim wrote:
Actually, the data_periods contains a complete range such as
[2018-09-01,2018-09-30] and data_sub_periods contains sub periods
contained in this period like:
[2018-09-05, 2018-09-07]
[2018-09-09, 2018-09-11]
[2018-09-12, 2018-09-19]
I make two conditio
Actually, the data_periods contains a complete range such as
[2018-09-01,2018-09-30] and data_sub_periods contains sub periods contained
in this period like:
[2018-09-05, 2018-09-07]
[2018-09-09, 2018-09-11]
[2018-09-12, 2018-09-19]
I make two conditions in order to fetch first if the period
[2018
On 07/30/2018 07:37 AM, hmidi slim wrote:
I'm trying to design a database table. First of all there are two
alternatives:
1-) Divide the table into two tables and make a join.
2-) Design a single table.
1rst alternative:
Create table data_periods(
id serial primary key not null,
period daterang
On 07/30/2018 09:37 AM, hmidi slim wrote:
I'm trying to design a database table. First of all there are two
alternatives:
1-) Divide the table into two tables and make a join.
2-) Design a single table.
1rst alternative:
Create table data_periods(
id serial primary key not null,
period daterang
