#CONVERT STRING TO DATE MYSQL CODE#

The basic syntax for it is: CONVERT(exp, DECIMAL)]) Code language: SQL (Structured Query Language) ( sql ) As the name suggests, DECIMAL produces a decimal value and has two optional parameters M and D, where M is the maximum number of digits, also known as precision, and D is a number of digits after decimal point known as scale.

You can check MySQL official documentation for the implementation of every data type. We will see a few data types conversion here, which will help you understand the usage of the CONVERT() function. You can convert the data into one of the following data types: DATE, DATETIME, TIME, DECIMAL, CHAR, BINARY, DOUBLE, FLOAT, SIGNED, UNSIGNED, YEAR. Though the CONVERT() function allows you to convert the value into a specified data type, the number of data types is limited to convert the value into. Let’s see the syntax of the CONVERT() function with some examples. Note that you don’t need to use the MySQL CONVERT() function all the time to change the data type of values because generally, implicit conversion takes place for converting lower data types into higher data types.

That’s where MySQL CONVERT() function comes into action! We can convert a string to date with the help of STRTODATE () function. But, you should not always rely on implicit conversion of the data because, in some cases, you might face errors and will end up inserting false/wrong values. Have you ever tried inserting an int type data into the char type column in MySQL? If yes, you might have realized that MySQL implicitly converts the data type of value before inserting it into the database. In such a case, you can use CONVERT() function to get your work done! It’s that simple! Let’s suppose you have a float value in your program, which is generated somehow, and you want to store it in the database as an integer after rounding it. The query result we see below is the expected outcome:īy using a combination of these two functions, you can extract every possible combination of date and time from a text string.As the name suggests, MySQL CONVERT() function converts the value from one data type to another. We must specify the format in exactly the same order, including all punctuation marks. The % character is mandatory before the format specifier characters. Since we only need the time here, we specify %T as the second argument. The second argument is the format, which works in the same way as it does in the STR_TO_DATE function. In our example, the first argument of the DATE_FORMAT function is the date resulting from the STR_TO_DATE function. The general syntax of the DATE_FORMAT function is: DATE_FORMAT(date, format) To extract only the time, we have to add the DATE_FORMAT function to the query above. Now we have the value in the DATETIME data type. The result of this query should look like this: 12:30:20. You can find more parameters in official documentation for MySQL. %T: Time in the 24-hour format (hh:mm:ss).%Y: Year as a 4-digit numeric value (yyyy).%m: Month as a numeric value from 01 to 12.You can store only this type, but you can use one of the many time format functions to change it, when you need to display it. %d: Day of the month as a numeric value from 01 to 31. 'MySQL retrieves and displays DATETIME values in 'YYYY-MM-DD HH:MM:SS' format.' This is from mysql site.%W: Weekday name from Sunday to Saturday.

In our case, we use the following parameters: The second argument specifies the format of the string. The first argument of this function is the string we want to convert. The syntax for this function is as follows: The purpose of the STR_TO_DATE function is to convert a text string to a datetime format. To do this, we use the STR_TO_DATE function. To illustrate the process more clearly, we will explain this in two parts.įirst, we have to convert the string to a date value. You want to extract only the time part, '12:30:20'. You have a string value that looks like this: 'Wednesday, 10 February 2021, 12:30:20'. You want to extract the time from a string value in MySQL.

Convert string to date mysql