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Entity Expressions (M to SQL Mapping)

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[This content is no longer valid. For the latest information on "M", "Quadrant", SQL Server Modeling Services, and the Repository, see the Model Citizen blog.]

Entities in Microsoft code name “M” are a single collection of field/value pairs. In an “M”->SQL translation, they are translated as a row in a table. Entity expressions are translated as shown in the following table.

Operation “M” Example SQL Example

Equality

A == B

<ID field of A> = <ID field of B>

Inequality

A != B

<ID field of A> <> <ID field of B>

Field names

A.FieldNames

Not currently implemented.

Indexer

A(B)

Not currently implemented.

Cast

A : B

Not currently implemented.