Context Database Extensions Suite 3.26
Context Database Extensions Suite 3.26 Ranking & Summary
Context Database Extensions Suite 3.26 description
Context Database Extensions Suite 3.26 is considered as a useful and easy to use component library which is desinged to enhance database related functionality provided by Borland Delphi/BCB VCL library.
It combines some generic imporvements as well as improvements pertaining to specific implementations (currently: DBISAM Database Engine by Elevate Software & NexusDB Database Engine by Nexus Database Systems Pty Ltd.) of base VCL classes designed for navigational database access.
- Persistent Database Schema. Database Schema contains the description of tables, relations between them as well as triggers and sql statements that could be used to update a database to the version required by the current version of application. Database Schema may be stored within application or in the database (System tables) or as an external file.
- RI Constraints. Relations between tables, defined within database schema, allows to implement various types of referential integrity (RI) constrains (Error, Cascade and Nullify for delete & update operations). Please, note, that processing of RI constraints might sometimes considerably slow down some delete and update operations.
- Replications. All changes made to records can be automatically written into a separate table ('Objects' tables) and used for database replications. TxxDatabaseExt provides methods, that could be used to create & synchronize snapshots with the main database.
- Additional events and properties provided for database, table and query components
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