How can I compare two date fields in MySQL?

MySQL has the ability to compare two different dates written as a string expression. When you need to compare dates between a date column and an arbitrary date, you can use the DATE() function to extract the date part from your column and compare it with a string that represents your desired date.

How can I compare two date fields in SQL?

1 Answer

  1. We can compare two dates using equals to, less than, and greater than operators in SQL.
  2. If you want to find the employees joined on April 28th, 2020 from employee table:
  3. You can use the less than and greater than operators in a similar way.

How can I compare date and current date in SQL Server?

  1. MySQL: (SQL Fiddle | db<>fiddle) Using DATE: select * from dates where dte = cast(now() as date) ;
  2. PostgreSQL: (SQL Fiddle | db<>fiddle) Using DATE: select * from dates where dte = current_date ;
  3. Oracle: (SQL Fiddle)

How can get date in dd mm yyyy format in MySQL?

MySQL uses yyyy-mm-dd format for storing a date value. This format is fixed and it is not possible to change it. For example, you may prefer to use mm-dd-yyyy format but you can’t. Instead, you follow the standard date format and use the DATE_FORMAT function to format the date the way you want.

How can get difference between two dates in years month and days in SQL Server?

Here is an example to get the years, months and days between two dates.

  1. Declare@dateofbirthdatetime.
  2. Declare@currentdatetimedatetime.
  3. Declare@yearsvarchar(40)
  4. Declare@monthsvarchar(30)
  5. Declare@daysvarchar(30)
  6. set@dateofbirth=’1986-03-15′–birthdate.
  7. set@currentdatetime =getdate()–current datetime.

Can SQL Compare dates?

In SQL, the date value has DATE datatype which accepts date in ‘yyyy-mm-dd’ format. To compare two dates, we will declare two dates and compare them using the IF-ELSE statement.

How to compare date string with string from datetime field in MySQL?

You can compare DATE string with string from DATETIME field with the help of DATE() function in MySQL.The syntax is as follows −. select *from yourTableName where DATE(yourColumnName) = ’anyDateString’; To understand the above syntax, let us create a table and set some datetime values in the table.

What is the default size of the comparison operator in MySQL?

The default is utf8mb4 . For row comparisons, (a, b) = (x, y) is equivalent to: NULL -safe equal. This operator performs an equality comparison like the = operator, but returns 1 rather than NULL if both operands are NULL, and 0 rather than NULL if one operand is NULL .

How can I extract the date from a datetime in MySQL?

In MySQL you can use the DATE function to extract the date from a datetime: But if you want to take advantage of an index on the column us_reg_date you might want to try this instead:

Can I convert a ‘0000-00-00’ date to null using ODBC?

When a ‘0000-00-00’ date is used through Connector/ODBC, it is automatically converted to NULL because ODBC cannot handle that kind of date. Because MySQL performs the conversions just described, the following statements work (assume that idate is a DATE column): However, the following statement does not work:

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