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    5.1. Aggregate Functions

    numeric, date, stringnumeric, date, string

    1.6. Comparison Operators

    7.3. Views That Allow UPDATE Statements

    … Views That Can Be Used With an UPdate Statement

    3.1. Date Functions

    Table 1. Current date Functions* Returns current local date and time.date/timedate(date)* extracts the date from input. If time is included, the time is dropped.date/timedate('2020-01-01 11:31:31')CURRENT_date()* Returns current local datedateCURRENT_dateUTC_date()* Returns current UTC date.dateUTC_date* Returns current UTC date.SELECT NOW() AS 'NOW()',    date('2020-01-01') AS 'date(), date only', …• Returns a date with a date or dateTIME value equal to the original value…Table 2. date_ADD Functiondate_ADD(date, interval expression unit)date, dateTIMEdate_ADD(‘2020-01-01’, INTERVAL 1 DAY)USE bike;SELECT order_date,    date_ADD(order_date, INTERVAL 1 DAY) AS 'ORDER…• dates must be enclosed in quotes • You can pass a date or dateTIME…Table 3. date_FORMAT Functiondate_FORMATdatedate_FORMAT(‘2020-09-03’, ‘%m/%d/%y’)… world;SELECT name, continent, date_FORMAT('2020-01-28', '%m/%d/%y')FROM country;SELECT dateDIFF('2018-01-01', '2019-01-01') AS 'date Difference';Current date/Time Functionsdate_ADDdate_FORMATdateDIFF

    1. How to Retrieve Data From a Single Table

    8.1. SQL Indexes Explained

    4.4. The DELETE Clause

    7.1. SQL View Explained

    6.2. The Subquery in an UPDATE statement

    1    UPdate country 2    SET GNPOld = 0.00 3    WHERE Code IN 4  …UPdate countryThe Subquery in an UPdate statement

    6.4. The Subquery In a Delete Statement

    … Before you can run a DELETE or UPdate statement without a WHERE clause, you…