Αποτελέσματα Αναζήτησης
29 Απρ 2010 · I have a question: Is it possible to select from a MySQL database by comparing one DATE string "2010-04-29" against strings that are stored as DATETIME (2010-04-29 10:00)? I have one date picker that filters data and I would like to query the table by the DATETIME field like this:
Here is an example that uses date functions. The following query selects all rows with a date_col value from within the last 30 days: . mysql> SELECT something FROM tbl_name-> WHERE DATE_SUB(CURDATE(),INTERVAL 30 DAY) <= date_col;. The query also selects rows with dates that lie in the future.
12 Φεβ 2024 · Check if String Contains Certain Data in MySQL Table Using SELECT With the LOCATE() Function. One effective method to check if a particular string occurs in a MySQL table is by utilizing the SELECT statement along with the LOCATE() function.
26 Ιαν 2024 · MySQL provides a range of functions to extract specific parts from date/time values. Starting out with the basics: Extract the Year, Month, and Day. To extract the year, month, and day from a DATE or DATETIME object, we use the YEAR(), MONTH(), and DAY() functions, respectively. Here’s how these functions can be used:
1 Ιαν 2018 · Master the art of date and time manipulation in MySQL with essential functions like NOW(), DATE_SUB(), DATE_ADD(), and more. Learn how to extract, compare, and calculate timestamps for effective data querying.
24 Δεκ 2012 · Examples: If you compare a DATETIME to two DATE values, convert the DATE values to DATETIME values. If you use a string constant such as '2001-1-1' in a comparison to a DATE, cast the string to a DATE."
MySQL comes with the following data types for storing a date or a date/time value in the database: DATE - format YYYY-MM-DD. DATETIME - format: YYYY-MM-DD HH:MI:SS. TIMESTAMP - format: YYYY-MM-DD HH:MI:SS. YEAR - format YYYY or YY.
