It will depend on the database you’re using!
As you can see below, there can be quite some variations in syntax between Vertica, SQL Server, MySQL, PostgreSQL
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------------------------------------Vertica ------------------------------------------------------------------------ | |
select | |
to_date(Concat(Year(Now()),'-03-31'), 'YYYY-MM-DD') as EndOfCalQ1, | |
to_date(Concat(Year(Now()),'-06-30'), 'YYYY-MM-DD') as EndOfCalQ2, | |
to_date(Concat(Year(Now()),'-09-30'), 'YYYY-MM-DD') as EndOfCalQ3, | |
to_date(Concat(Year(Now()),'-12-31'), 'YYYY-MM-DD') as EndOfCalQ4, | |
to_date(Concat(Year(Now()),'-01-31'), 'YYYY-MM-DD') as EndOfFQ1, | |
to_date(Concat(Year(Now()),'-04-30'), 'YYYY-MM-DD') as EndOfFQ2, | |
to_date(Concat(Year(Now()),'-07-31'), 'YYYY-MM-DD') as EndOfFQ3, | |
to_date(Concat(Year(Now()),'-10-31'), 'YYYY-MM-DD') as EndOfFQ4 | |
------------------------------------PostgreSQL---------------------------------------------------------------------- | |
select | |
to_date(date_part('year', current_date) || '-03-31', 'YYYY-MM-DD') as EndOfCalQ1, | |
to_date(date_part('year', current_date) || '-06-30', 'YYYY-MM-DD') as EndOfCalQ2, | |
to_date(date_part('year', current_date) || '-09-30', 'YYYY-MM-DD') as EndOfCalQ3, | |
to_date(date_part('year', current_date) || '-12-31', 'YYYY-MM-DD') as EndOfCalQ4, | |
to_date(date_part('year', current_date) || '-01-31', 'YYYY-MM-DD') as EndOfFQ1, | |
to_date(date_part('year', current_date) || '-04-30', 'YYYY-MM-DD') as EndOfFQ2, | |
to_date(date_part('year', current_date) || '-07-31', 'YYYY-MM-DD') as EndOfFQ3, | |
to_date(date_part('year', current_date) || '-10-31', 'YYYY-MM-DD') as EndOfFQ4 | |
endofcalq1 |endofcalq2 |endofcalq3 |endofcalq4 |endoffq1 |endoffq2 |endoffq3 |endoffq4 | | |
-----------|-----------|-----------|-----------|-----------|-----------|-----------|-----------| | |
2017-03-31 |2017-06-30 |2017-09-30 |2017-12-31 |2017-01-31 |2017-04-30 |2017-07-31 |2017-10-31 | | |
/*------------------------------------MySQL----------------------------------------------------------------*/ | |
select | |
str_to_date(Concat(Year(Now()),'-03-31'), '%Y-%m-%d') as EndOfCalQ1, #--find the end of calendar Q1 | |
str_to_date(Concat(Year(Now()),'-06-30'), '%Y-%m-%d') as EndofCalQ2, #---find the end of calendar Q2' | |
str_to_date(Concat(Year(Now()),'-09-30'), '%Y-%m-%d') as EndOfCalQ3, #---find the end of calendar Q3' | |
str_to_date(Concat(Year(Now()),'-12-31'), '%Y-%m-%d') as EndOfCalQ4, #---find the end of calendar Q4' | |
str_to_date(Concat(Year(Now()),'-01-31'), '%Y-%m-%d') as EndOfFQ1, #---find the end of fiscal Q1' | |
str_to_date(Concat(Year(Now()),'-04-30'), '%Y-%m-%d') as EndofFQ2, #---find the end of fiscal Q2' | |
str_to_date(Concat(Year(Now()),'-07-31'), '%Y-%m-%d') as EndOfFQ3, #---find the end of fiscal Q3' | |
str_to_date(Concat(Year(Now()),'-10-31'), '%Y-%m-%d') as EndOfFQ4 #---find the end of fiscal Q4' | |
EndOfCalQ1 |EndofCalQ2 |EndOfCalQ3 |EndOfCalQ4 |EndOfFQ1 |EndofFQ2 |EndOfFQ3 |EndOfFQ4 | | |
-----------|-----------|-----------|-----------|-----------|-----------|-----------|-----------| | |
2017-03-31 |2017-06-30 |2017-09-30 |2017-12-31 |2017-01-31 |2017-04-30 |2017-07-31 |2017-10-31 | | |
--------------------- ------------SQL Server: Convert-------------------------------------------------------- | |
select | |
convert(date, Concat(Year(getdate()),'-03-31')) as EndOfCalQ1, | |
convert(date, Concat(Year(getdate()),'-06-30')) as EndOfCalQ2, | |
convert(date, Concat(Year(getdate()),'-09-30')) as EndOfCalQ3, | |
convert(date, Concat(Year(getdate()),'-12-31')) as EndOfCalQ4, | |
convert(date, Concat(Year(getdate()),'-01-31')) as EndOfFQ1, | |
convert(date, Concat(Year(getdate()),'-04-30')) as EndOfFQ2, | |
convert(date, Concat(Year(getdate()),'-07-31')) as EndOfFQ3, | |
convert(date, Concat(Year(getdate()),'-10-31')) as EndOfFQ4 | |
EndOfCalQ1 |EndOfCalQ2 |EndOfCalQ3 |EndOfCalQ4 |EndOfFQ1 |EndOfFQ2 |EndOfFQ3 |EndOfFQ4 | | |
-----------|-----------|-----------|-----------|-----------|-----------|-----------|-----------| | |
2017-03-31 |2017-06-30 |2017-09-30 |2017-12-31 |2017-01-31 |2017-04-30 |2017-07-31 |2017-10-31 | | |
---------------------------------SQL Server: Cast------------------------------------------------------------- | |
select | |
cast(Concat(Year(getdate()),'-03-31') as date) as EndOfCalQ1, | |
cast(Concat(Year(getdate()),'-06-30') as date) as EndOfCalQ2, | |
cast(Concat(Year(getdate()),'-09-30') as date) as EndOfCalQ3, | |
cast(Concat(Year(getdate()),'-12-31') as date) as EndOfCalQ4, | |
cast(Concat(Year(getdate()),'-01-31') as date) as EndOfFQ1, | |
cast(Concat(Year(getdate()),'-04-30') as date) as EndOfFQ2, | |
cast(Concat(Year(getdate()),'-07-31') as date) as EndOfFQ3, | |
cast(Concat(Year(getdate()),'-10-31') as date) as EndOfFQ4 | |
EndOfCalQ1 |EndOfCalQ2 |EndOfCalQ3 |EndOfCalQ4 |EndOfFQ1 |EndOfFQ2 |EndOfFQ3 |EndOfFQ4 | | |
-----------|-----------|-----------|-----------|-----------|-----------|-----------|-----------| | |
2017-03-31 |2017-06-30 |2017-09-30 |2017-12-31 |2017-01-31 |2017-04-30 |2017-07-31 |2017-10-31 | | |
So, what’s common in all these examples? In all cases, you will need:
- a function that gets the current date
- a function that extracts the year from the current date
- a function that concatenates strings
- a function that converts a string to a date
Need help with those?
Check out my other blog posts:
- How can I get the current time with SQL?
- How do I extract part of a date with SQL?
- How do I concatenate strings with SQL?
- How do I convert string to a date with SQL?
Happy SQL-ing!