similarly to delete a null column every column has to be compared on a row-level and flagged for removal. Both of these approaches are clumsy. I agree, adding an option to delete the rows where a field contains a null would be extremely useful.WHERE email != NULL; WHERE email = NULL; 2. If you write queries using the BETWEEN operator, it does not matter in what order you enter the values, i.e. BETWEEN low value AND high value will give the same result as BETWEEN high value and low value.
So, if you put a NULL value in that field using other means that OutSystems, only through an SQL you will be able to retrieve it. We are facing this NULLDate problem also when migrating from database that its column has already set to NULL value - need to convert/check it to 1900NOT NULL is a constraint that you can place on a table's column. This constraint disallows the entrance of NULL values into a column; in other words, data is required in a NOT NULL column for each row of data in the table. NULL is generally the default for a column if NOT NULL is not specified, allowing NULL values in a column. 5.
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