Both seem to refer to tables which can be easily analyzed and are updated from the OLTP tables every once in a while.
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Both seem to refer to tables which can be easily analyzed and are updated from the OLTP tables every once in a while.
In principle no absolute difference. Those two concepts are orthogonal to each other, they are not mutually exclusive.
OLAP refers either to a type of workload or sometimes to the type of software used for Decision Support applications. ODS is a type of database or subset of some database, typically used as part of a Decisions Support solution.