RDM Server – Raima’s client/server DBMS originally released in 1993, known as RDS (Raima Database Server), Velocis, and lastly RDM Server. Nevertheless supported for current clients.

RDM Server – Raima’s client/server DBMS originally released in 1993, known as RDS (Raima Database Server), Velocis, and lastly RDM Server. Nevertheless supported for current clients.

Read-only deal – A Multi-Version Concurrency Control (MVCC) feature enabling database information become read by one procedure without blocking another procedure’s modification of this data that are same. Often known as a “snapshot.”

Real-time – a environment that is real-time one by which particular tasks should be assured to perform inside a specified time period. For a DBMS to be looked at certainly real-time, it should be in a position to perform particular database-related tasks in a period that may be deterministically demonstrated—i.e., the worst situation execution time may be demonstrated. Just because a general-purpose DBMS relates to dynamic data where the sizes of tables differ as time passes, and because DBMS response times rely on the total amount of information become processed they can’t be viewed real-time. This will be real additionally for RDM. It really is real-time friendly, it to be used in beneficial ways in a real-time application because it is fast, has a small footprint and has features (such as virtual tables and in-memory storage) that allow.

Record Instance/Occurrence – One group of associated information industry values related to a record that is specific to an SQL row.

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Record Type – an accumulation of closely associated information fields—equivalent to an SQL table. Just like a C struct, accurate documentation kind is defined by a couple of closely associated information areas.

Referential Integrity – a disorder where the international key column values in every associated with rows in one single dining dining table have actually matching rows into the referenced primary table that is key. Referential integrity is maintained by SQL through the processing of a INSERT and DELETE declaration and any UPDATE statement that modifies a international or primary key value.

Relational Model – A database by which inter-table relationships are arranged mainly through common information columns, which define a one-to-many relationship between a line associated with the main key dining dining table plus one or higher rows for the matching international table that is key. Equi-joins relate tables which have matching primary/foreign values that are key but other evaluations (relationships) could be defined. As well as explaining how a database tables are related, the relational model additionally describes just how a associated data could be accessed and manipulated. SQL is considered the most commonly used relational model database language. See Wikipedia

Remote Procedure Phone – a technique of interprocess interaction where a function https://datingmentor.org/dating4disabled-review/ residing within another procedure is named as though it really is a regional (in-process) function. The technique is implemented through a nearby proxy function and a remote stub function. Parameter values are marshalled right into a block of information that may be sent through the proxy towards the stub for demarshalling and calling the function that is actual. Return values are prepared within the same manner as input values.

Replication – a procedure where chosen changes in a master database is replicated re-played that is( into another database.

Regulation Factor – Each expression that is relational into the WHEREIN clause of a question comes with an associated limitation component that is approximated by the SQL optimizer, which specifies the small fraction (or portion) of this dining dining table which is why the expression would be real. For instance, when you look at the query choose * from book where bookid = ‘austen013px’ the relational phrase bookid = ‘austen013px’ includes a limitation factor corresponding to .003 (just one away from 3213px rows will satisfy this phrase).

Result Set – the whole pair of rows this is certainly came back with a specific choose statement.

Rollback – a procedure, frequently done by the SQL ROLLBACK statement, that discards all the modifications created by all INSERT, UPDATE and DELETE statements which were performed considering that the most recently started transaction ( ag e.g., BEGIN DEAL declaration).

Line – One group of related values for many regarding the columns declared in a offered dining table. Also referred to as accurate documentation incident.

Royalty – A License charge established in an Agreement (Product and Pricing Addendum).