Script Extractor Description

Features | Detailed Description

The Script Extractor component is used for parsing SQL/DDL script, extracting all database objects and storing it in to the DB Structure component.

Each database type has own TxxxScriptExtract classes which knows how to work with this specific database. For example for MS SQL there is a TMSSQLScriptExtract class and TIBSctiptExtract for Interbase and so on. There are another metadata extractors - DB Extractor. These extractors can work directly with the database structure on the server.

Metadata extractor saves all information about underlying database structure in to a special storage class DB Structure. This class is unified for all types of databases. Such approach makes possible to compare and synchronize databases structure of different types of databases. For example you can compare and synchronize Oracle and MS SQL databases, MS SQL and dBases databases and so on.

Please see the Demos code (ScriptComparer) and also the indexed Help documentation provided with the Database Comparer VCL installation for more details about using this component.

Property List

Name	Description
ExtractObjects	Specifies database objects to be extracted from the database.
DBStructure	Provides Database Structure to store extracted database objects.
Script	Original script for analysis.
ScriptFileName	File name of original script for analysis.
ShowFullLog	Generate detailed log when extracting metadata.

Method List

Name	Description
ExtractDatabase	Extracts the database structure.

Event List

Name	Description
OnErrorMessage	Occurs when an error is generated during extracting, comparing, or updating the database.
OnLoadScript	Event to be fired after script was loaded.
OnLogNextLine	Occurs when a new line has been generated and needs to be saved to log.
OnProgressUpdate	Occurs when the progress has changed.

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