Sqlite select with condition on date

sql

date-manipulation

sqlite-queries

database-performance

byAlex Kataev·Nov 6, 2024

To filter by a specific date in SQLite, use:

SELECT * FROM your_table WHERE strftime('%Y-%m-%d', date_column) = 'YYYY-MM-DD';

Or to filter a date range, use:

SELECT * FROM your_table WHERE date_column BETWEEN 'YYYY-MM-DD' AND 'YYYY-MM-DD';

Don't forget to replace your_table, date_column, and 'YYYY-MM-DD' with your actual table name, date column, and desired date(s).

SQLite and dynamic date filtering

SQLite is a party animal and always knows now. Utilize this to your advantage:

-- "Hey SQLite, get me all the cookies baked in the last week!"
SELECT * FROM cookies WHERE baked_at > date('now', '-7 days');

Or, if you want to filter by age, say 30 years ago from today:

-- "SQLite, fetch me all dinosaurs born more than 30 years ago!"
SELECT * FROM dinosaurs WHERE hatched_date < date('now', '-30 years');

Dates and SQLite — like two peas in a pod

Dates in SQLite work best with the ISO8601 string format (YYYY-MM-DD). Not adhering to this is a crime against humanity... and precision. Use strftime() to format and manipulate date values. Ensure consistency throughout your SQL statements, or SQLite will beg for mercy.

Efficient date filtering with SQLite

Telcos may overcharge for BETWEEN texts, but SQLite loves 'em — particularly for date ranges:

-- "Get me reports from this month, SQLite. And no, I won't change calendar format!"
SELECT * FROM reports WHERE created_at BETWEEN date('now', 'start of month') AND date('now');

Level : Advanced - SQLite Date Manipulation

Want to impress your friends with some date magic (or get your data on time)? Use modifiers with strftime(). For example, getting the latest deals from the start of the current month:

-- "SQLite, I need this month's deals. No, it's not Black Friday yet!"
SELECT * FROM deals WHERE deal_date BETWEEN date('now', 'start of month') AND date('now');

Your SQLite version — a compatibility story

Different versions of SQLite support different features. Always cross-check your SQLite version with the official SQLite documentation. Trust me — it's easier than explaining why your queries fail at your weekly stand-up.

Real-world scenarios for the coding hero in you

Still stuck up the programming tree? Let's go through some practical examples:

Past 3 Months:

-- "Dear SQLite, I need all events from the last three months. Also, I like Jazz music!"
SELECT * FROM events WHERE date_happened BETWEEN date('now', '-3 months') AND date('now');

Last Month's Finances:

-- "SQLite, find the end-of-month financial record. Don't worry, I won't ask you to calculate taxes!"
SELECT * FROM financials WHERE date_recorded = date('now', 'start of month', '-1 day');

Dodging Pitfalls: Watch out! Misformatted dates will throw you off. Understand the quirks of your data and convert all dates to a consistent format.
Version Compatibility: Remember — just like your high school crush — different versions of SQLite have their nuances. Ensure you use supported functions for your SQLite version.