Sure, here is how you can convert a string to a date in Oracle SQL:

SQL

SELECT TO_DATE('2023-07-18', 'DD-MM-YYYY');

This code will convert the string 2023-07-18 to a date in the format DD-MM-YYYY. The TO_DATE() function takes two arguments: the string to convert and the date format. The date format is a string that specifies the format of the string to convert.

Here is a table of some of the common date formats that you can use with the TO_DATE() function:

You can also use the TO_DATE() function to convert a string in a custom format to a date. For example, the following code converts a string in the format "YYYYMMDD" to a date:

SQL

SELECT TO_DATE('20230718', 'YYYYMMDD');

This code would also return the date 2023-07-18.

The TO_DATE() function is a powerful tool that you can use to convert different string formats into dates in Oracle. By using the TO_DATE() function, you can ensure that your dates are stored in a consistent format.

Here are some examples of how to use the TO_DATE() function:

SQL

-- Convert a string in the format "DD-MM-YYYY" to a date.
SELECT TO_DATE('2023-07-18', 'DD-MM-YYYY');

-- Convert a string in the format "YYYY-MM-DD" to a date.
SELECT TO_DATE('20230718', 'YYYYMMDD');

-- Convert a string in a custom format to a date.
SELECT TO_DATE('01-JAN-2023', 'DD-MON-YYYY');