How do you find greater than in decode?
To search for values greater than a search value you can combine the SIGN function with the DECODE statement. The SIGN function returns either -1,0 or 1 depending if a value is less than, equal to or greater than a specified value or expression.
Does decode work in SQL Server?
However, we should keep in mind that DECODE is a built-in function in ORACLE SQL databases and hence it is supported only in ORACLE 9i and above versions of ORACLE/ PL SQL. It is not recognized and supported in other database management servers such as PostgreSQL, SQL Server, MySQL etc.
What is the equivalent of Decode in SQL Server?
In SQL Server the equivalent code is CASE statement. Here are the examples regarding how DECODE can be written in SQL Server.
What is the output of select decode null null 1 0 from dual?
Oracle DECODE Function with NULL Values It treats a NULL expression and NULL search as equal (so NULL == NULL). So, this example will return 1: SELECT DECODE(NULL, NULL, 1, 0) FROM DUAL; The CASE statement treats NULL values as not equal, so this is an important distinction when working with this function.
Can we use decode in update statement?
You cant use decode in an update statement. You can however use a merge statement.
Can we use decode inside decode?
It is possible to use DECODE, but you’d have to use nested DECODEs and you’d end up with something that’s much harder to read, understand and therefore maintain.
How do I decode in SQL Developer?
The DECODE function returns a value that is the same datatype as the first result in the list. If the first result is NULL, then the return value is converted to VARCHAR2. If the first result has a datatype of CHAR, then the return value is converted to VARCHAR2. If no matches are found, the default value is returned.
Can we use NULL in Decode Oracle?
DECODE. The DECODE function is not specifically for handling null values, but it can be used in a similar way to the NVL function, as shown by the following example.
What is the difference between Case and decode in SQL?
CASE is a statement while DECODE is a function. CASE can work with logical operators other than ‘=’ : DECODE performs an equality check only. CASE is capable of other logical comparisons such as < ,> ,BETWEEN , LIKE etc.