SQL where Datetime Column equals today’s Date?

To check if a DATETIME column matches today’s date in SQL, you compare only the date part of the column with today’s date. This is done using database-specific date functions like DATE() or CURRENT_DATE.

Here’s the basic explanation:

1. Extract the date part from the DATETIME column.
2. Compare it with the current date.

Key Points:

• For MySQL: Use DATE(your_column) to extract the date.
• For SQL Server: Use CAST(your_column AS DATE) or similar.
• For PostgreSQL: Use your_column::DATE.
• For Oracle: Use TRUNC(your_column).

Performance Tip:

Avoid functions on the column if possible; use a range like “greater than or equal to midnight and less than the next day’s midnight” to make queries faster.