Date values represent calendar dates such as employee joining dates, order dates, transaction dates, invoice dates, and payment dates. SQL database systems provide date and time data types and functions that allow users to compare, filter, sort, and calculate information based on dates.
Time-based analysis is a major part of business reporting. Analysts often need to compare monthly sales, identify recent transactions, calculate employee tenure, or analyze trends over time.
A Data Analyst may need to retrieve all sales transactions that occurred after January 1, 2026. A date condition can be used to filter the required records.
SELECT
OrderID,
OrderDate,
SalesAmount
FROM Sales
WHERE OrderDate >= '2026-01-01';Date values are used in sales reporting, transaction analysis, employee analytics, financial reporting, customer activity analysis, and operational reporting.
- Date values represent calendar dates.
- SQL supports date and time data types.
- Dates can be filtered using conditions.
- Dates can be sorted.
- Date functions can be used for time-based analysis.
Why are date values important in SQL?
Date values allow analysts to perform time-based filtering, sorting, calculations, and trend analysis.
Give examples of business fields that store dates.
Examples include OrderDate, JoiningDate, TransactionDate, InvoiceDate, and PaymentDate.