In MySQL, retrieving the count of records that fall within a specific date-time range can be a common task. This article addresses this issue by offering a clear solution based on the user's query.
The user's objective is to acquire the count of records in a table named 'table' that have a 'created' column of datetime data type. The user wants to count records created between "TODAY'S 4:30 AM" and "CURRENT DATE TIME."
To achieve this, we can utilize the '>' (greater than) and '<=' (less than or equal to) operators in the WHERE clause. The following query demonstrates how:
SELECT COUNT(*) FROM `table` WHERE created_at > 'DATE_TIME_START' AND created_at <= 'DATE_TIME_END';</p> <p>Replace 'DATE_TIME_START' with "TODAY'S 4:30 AM" in the datetime format, and 'DATE_TIME_END' with "CURRENT DATE TIME" in the datetime format. Alternatively, you can use the CURDATE() or NOW() functions to obtain the current date or time and construct the query dynamically.</p> <p>Another approach is to employ the BETWEEN operator within the WHERE clause, as shown below:</p> <pre class="brush:php;toolbar:false">SELECT COUNT(*) FROM `table` WHERE created_at BETWEEN 'DATE_TIME_START' AND 'DATE_TIME_END';
By implementing these queries, you can effectively determine the count of records created within the specified date-time range in your MySQL database.
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