The column [PAYOFF DATE] has some blank values and some values in mm/dd/yy format.
I have to replace '/' with '-' and return the date as yyyy-mm-dd. The below query is doing it. The problem is that for all blank values, I am getting results as 1900-01-01.
Is it possible to replace 1900-01-01 with null and return other valid date values as is in yyyy-mm-dd format?
I am using SQL Server.
SELECT
cast(replace(a.[PAYOFF DATE],'/','-') as date)
FROM MTG a
How to blank out a date field using SQL? "NULL" can be specified as a value in the Date field to get an empty/blank by using INSERT statement.
If you have a STRING column where its format is like TIMESTAMP , you can simply apply it. Then, DATE will extract just the date and it takes care of the NULL values. Show activity on this post. You can try substr[1] from 1 to 10 to get the date, and then you can use the safe.
You dont need to do the string manipulation as you have shown in your question. If you have dates stored in mm/dd/yyyy
format just cast it as DATE.
SELECT cast(a.[PAYOFF DATE] AS DATE)
FROM MTG a
For 1900-01-01
values, since you are converting from a string data type to Date, String datatype can have Empty strings but Date datatype cannot have empty date values, It can have either a date value or NULL
value.
Therefore you need to convert the empty string to nulls before you convert it to date. 1900-01-01 is just a default value sql server puts in for you because Date datatype cannot have an empty value.
You can avoid having this sql server default value by doing something like this.
SELECT cast(NULLIF(a.[PAYOFF DATE],'') AS DATE)
FROM MTG a
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With