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

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

Real-time – A real-time environment is one for which certain tasks must certanly be assured to execute in just a specified time period. For a DBMS to be viewed undoubtedly real-time, it should be in Austin TX escort reviews a position to perform certain database-related tasks in an occasion that may be deterministically demonstratedвЂ”i.e., the worst instance execution time could be demonstrated. Just because a general-purpose DBMS addresses dynamic information when the sizes of tables differ in the long run, and since DBMS response times be determined by the total amount of data to be prepared they are unable to be viewed real-time. That is real additionally for RDM. It really is real-time friendly, since it is fast, has a tiny impact and has now features (such as for example digital tables and in-memory storage space) that enable it to be found in useful means in a real-time application.

Record Instance/Occurrence – One group of associated information industry values related to a certain record typeвЂ”equivalent to an SQL row.

Record Type – an accumulation of closely associated information fieldsвЂ”equivalent to an SQL table. Just like a C struct, an archive kind is defined by a couple of closely associated information industries.

Referential Integrity – a disorder when the international key column values in most for the rows within one dining dining table have actually matching rows within the referenced primary table that is key. Referential integrity is maintained by SQL through the processing of an INSERT and DELETE statement and any UPDATE statement that modifies a foreign or primary key value.

Relational Model – A database by which inter-table relationships are arranged mainly through typical information columns, which define a one-to-many relationship from a row associated with the main key dining dining dining table plus one or maybe more rows associated with matching international key table. Equi-joins relate tables that have matching primary/foreign key values, but other evaluations (relationships) can be defined. Along with explaining how a database tables are associated, the model that is relational defines exactly exactly how a associated information could be accessed and manipulated. SQL is considered the most widely used model database language that is relational. See Wikipedia

Remote Procedure Phone – a way of interprocess interaction where a function living within another procedure is known as as though it really is a nearby (in-process) function. The technique is implemented through a nearby proxy function and a stub function that is remote. Parameter values are marshalled right into a block of information that may be sent through the proxy to your stub for demarshalling and calling the function that is actual. Return values are prepared into the way that is same input values.

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

Regulation Factor – Each relational phrase specified into the WHEREIN clause of a question posseses an associated limitation component that is projected by the SQL optimizer, which specifies the fraction (or portion) regarding the dining dining dining table which is why the expression would be real. As an example, when you look at the query choose * from book where bookid = ‘austen013px’ the relational expression bookid = ‘austen013px’ features a restriction element corresponding to .003 (just one away from 3213px rows will satisfy this phrase).

Result Set – the entire pair of rows that is came back by A select that is particular statement.

Rollback – a surgical procedure, often done because of the SQL ROLLBACK statement, that discards all the modifications produced by all INSERT, IMPROVE and DELETE statements which have been performed because the most recently started transaction ( ag e.g., BEGIN DEAL declaration).

Row – One group of relevant values for many of this columns declared in a offered dining dining table. Also called a record event.

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