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26 lip 2013 · I'm trying to do an IF statement type function in SQL server. Where there is a NULL in the field, I want it to take a field from one of the tables and add 10 days to it. And if possible create another column and add the 30 days.
26 paź 2018 · The Jet/ACE SQL dialect does support IS NULL. However, as your current results suggest, empty strings ('') are not the same as the NULL entity. This is especially true in Excel (a non-database application where empty cells may not default to NULL).
9 kwi 2022 · Solved: Hello, I need to combine 2 columns based on if one of them is NULL. I will say it in English: if [Name_FBL1N_Stampli] is Null then use.
11 lip 2012 · Is there any better way to write the lines below in SQL Server 2005? CASE WHEN (ID IS NULL) THEN 'YES' WHEN (ID IS NOT NULL) THEN 'NO' END AS ID_Value,
24 mar 2021 · CASE WHEN, IF, IFNULL, NULLIF – funkcje warunkowe mySQL – Kurs języka SQL. Napisano 24 marca 2021 przez Damian Jeliński. W poniższym kursie omówię zastosowanie instrukcji warunkowych (CASE WHEN, IF, IFNULL, NULLIF) używanych w języku mySQL wraz z przykładami.
The SQL CASE Expression. The CASEexpression goes through conditions and returns a value when the first condition is met (like an if-then-else statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it returns the value in the ELSEclause.
There are 3 possible ways to deal with nulls in expressions: using IsNull, Coalesce or CASE. I've explained these under separate headings below! The ISNULL Function. This function substitutes a given value when a column is null. The syntax is:
