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21 mar 2013 · I want to display an empty string if the field is the minimum date (1/1/1900), but my CASE statement doesn't work; CreatedDate displays 1900-01-01 00:00:00.000 in my query when that value is in the database. I'm using SQL Server 2008 R2.
6 cze 2024 · The ISNULL function in MS SQL takes two arguments: the first is a value or column name, and the second is the default value if the first argument is null. This query retrieves rows where the code column is either null, an empty string, or contains only spaces.
21 lip 2018 · To convert a date to a string, you use the CAST() function as follows: CAST(date AS string) Code language: SQL (Structured Query Language) (sql) In this syntax: The date can be a literal or an expression that evaluates to a DATE value. The string can be any character string data type such as VARCHAR or TEXT. The CAST() function returns a string ...
17 lis 2015 · You can't get an empty string because you're returning the DATE value type from ISNULL. Per the docs, ISNULL. Returns the same type as check_expression. If a literal NULL is provided as check_expression, returns the datatype of the replacement_value.
This statement is incorrect: [ -z "$1" ] is a proper way of testing if $1 is empty. sh -c '[ -z "$1" ]' ''; sh -c '[ -z "$1" ]' - both return 0, but in the second case $1 cannot be empty because it does not exist.
Here is an example that uses date functions. The following query selects all rows with a date_col value from within the last 30 days: . mysql> SELECT something FROM tbl_name-> WHERE DATE_SUB(CURDATE(),INTERVAL 30 DAY) <= date_col;. The query also selects rows with dates that lie in the future.
If you need it to be of the date data-type, there is a way around it, and this is to nest a REPLACE within an ISNULL, the following worked for me: Select ISNULL( REPLACE( [DATE COLUMN NAME], '1900-01-01', '' ), '') AS [MeaningfulAlias]
