# How do I calculate the remaining days until the end of a fiscal quarter?

Should you work for a public company, it is very likely that the fiscal year of your company may not be the same as the calendar year. This in turn, means, that a bunch of your analyses may need to forecast financials for the fiscal quarters, rather than the calendar ones. How could you then … Continue reading How do I calculate the remaining days until the end of a fiscal quarter?

# How do I calculate the remaining days until the end of a calendar quarter?

It may sound overwhelming but it's actually quite simple, especially if you've already figured out how to: extract various time periods from a date get the end date of the current quarter calculate the number of days between two days As you'll see below - calculating the remaining days in current quarter is then nothing … Continue reading How do I calculate the remaining days until the end of a calendar quarter?

# How do I find the difference between two dates with SQL?

Whether you're: calculating key supply chain indicators trying to forecast orders/sales/revenue until the end of quarter/year, you're very likely to find yourself in the need of calculating the difference between two dates (timestamps)... A way to go about it would be to use the datediff('years', start date, current date) function. The great thing about the datediff() … Continue reading How do I find the difference between two dates with SQL?

# How can I get the end date of a quarter with SQL?

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   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 … Continue reading How can I get the end date of a quarter with SQL?

# How do I extract part of a date with SQL? (2)

Yesterday, we looked at the standard approach of aggregating daily data stretching over a longer time periods If you're lucky enough to be working with Vertica or MySQL, you can also rely on functions like: year(), quarter(), month(), week(), day() SQL Server also supports some of them - year(), month(), day() - but is by far the most limited of … Continue reading How do I extract part of a date with SQL? (2)

# How do I convert a timestamp to another timezone with SQL?

Have you ever had that request? I would like to have the distribution of clicks per hour for the last week in local time It's a no brainer if your database server is in the same time zone as your business audience  - then you just need to aggreate the clicks' timestamps to an hour. Not … Continue reading How do I convert a timestamp to another timezone with SQL?

# How do I extract part of a date with SQL?

You might often need to do this if you're to aggregate daily data stretching over a longer time period and yet retain the timing The standard way forward is to use the  date_part() function Below you can find its syntax within some of the most widely used database environments   Curious for alternative approaches?