The first three birth_dates are in familiar formats as we have already discussed examples based on them. In these queries, the given birth_date is not in the standard PostgreSQL date format. INSERT INTO students(first_name, last_name, birth_date) Now let us try to insert data records in the “students” table, using the following queries. Student_id INT GENERATED BY DEFAULT AS IDENTITY,
Dev dd written update code#
We can use the following code snippet to perform the given task. In order to illustrate the uses of to_date() function, let us create a dummy “students” table. SQL query to illustrate the use of to_date() function in INSERT statements. The above mentioned query returns the input string in YYYY-MM-DD date format in the MYSQL database. So, let us try some examples which will work there as well. Since the SQL server and MYSQL do not have to_date() as a built-in function, we cannot use it there. Great, we just learned to convert character strings into date data type using to_date() function. In PostgreSQL, we can simply convert a character string written in date format to date data type without using the to_date() function in the following way. This can be solved by using the to_date function with the following set of arguments.
![dev dd written update dev dd written update](https://serialgossip.in/wp-content/uploads/2021/04/Screenshot_2021_0421_184712.png)
We can sometimes have date information mixed with a timestamp string. Suppose we have some entries which are in shorthand format like ‘070920’ and we want to convert it into YYYY-MM-DD format. We can use the following piece of code to perform the task.
![dev dd written update dev dd written update](https://static.toiimg.com/thumb/msid-53942028,width-800,height-600,resizemode-75/53942028.jpg)
Next, suppose we have some date information written in text format like the one in this example. Suppose you want to convert ‘20200526’ into YYYY-MM-DD format (stands for 4 characters of the year, followed by two characters of month and day each.) We can use the to_date() function in the following manner.