sql - isnull vs is null - Stack Overflow
Jul 27, 2015 · isnull(name,'') <> name This one changes the value of null fields to the empty string so they can be used in a comparision. In SQL Server (but not in Oracle I think), if a value is null and it is …
How to use isnull in where clause of SQL - Stack Overflow
Nov 11, 2022 · How to use isnull in where clause of SQL Asked 3 years, 2 months ago Modified 3 years, 2 months ago Viewed 4k times
SQL IsNull function - Stack Overflow
Dec 1, 2022 · I saw a sql code using the isNull function in the where clause, similar like below:date>isNull(date1,date2) Can someone explain what this means? Many Thanks! Michelle
sql - Using ISNULL vs using COALESCE for checking a specific condition ...
Dec 10, 2017 · 28 I think not, but COALESCE is in the SQL '92 standard and supported by more different databases. If you go for portability, don't use ISNULL.
What is the Oracle equivalent of SQL Server's IsNull() function?
Aug 19, 2010 · 160 coalesce is supported in both Oracle and SQL Server and serves essentially the same function as nvl and isnull. (There are some important differences, coalesce can take an …
sql - Using IsNull () in a WHERE clause - Stack Overflow
Feb 10, 2017 · Using IsNull () in a WHERE clause Asked 8 years, 11 months ago Modified 6 years, 3 months ago Viewed 11k times
sql - Using ISNULL or COALESCE on date column - Stack Overflow
Using ISNULL or COALESCE on date column Asked 6 years, 10 months ago Modified 3 years, 8 months ago Viewed 43k times
Replacing NULL with 0 in a SQL server query - Stack Overflow
The ISNULL return value is always considered NOT NULLable (assuming the return value is a non-nullable one) whereas COALESCE with non-null parameters is considered to be NULL. So the …
sql - What does the equals one mean - ISNULL (something, 1) = 1
Nov 15, 2018 · What does the equals one mean - ISNULL (something, 1) = 1 Asked 7 years, 2 months ago Modified 6 years, 4 months ago Viewed 3k times
SQL is null and = null - Stack Overflow
Mar 6, 2012 · In SQL, a comparison between a null value and any other value (including another null) using a comparison operator (eg =, !=, <, etc) will result in a null, which is considered as false for the …