IRdsExportSchema.CheckTable

Fore Syntax

CheckTable(Database: IDatabaseInstance): Boolean;

Fore.NET Syntax

CheckTable(Prognoz.Platform.Interop.Db.IDatabaseInstance): boolean;

Parameters

Database. Database checked for availability of the table specified in the import schema.

Description

The CheckTable method checks if the table specified in export schema of the MDM dictionary, does really exist.

Comments

The method returns True if the table specified in the import schema does really exist.

Fore Example

Executing the example requires an MDM repository with the NSI identifier and an MDM dictionary with the NSI_DICT identifier placed in this repository. Create an export schema with the EXPORTSCHEMA identifier in the dictionary.

Add links to the Metabase, Rds, Db system assemblies.

Sub  UserProc;
Var
    MB: IMetabase;
    MObj: IMetabaseObject;
    Dict: IRdsDictionary;
    ExportSchemas: IRdsExportSchemas;
    ExportSchema: IRdsExportSchema;
    Database: IDatabaseInstance;
Begin
    MB := MetabaseClass.Active;
    MObj := MB.ItemByIdNamespace("NSI_SEP",  MB.GetObjectKeyById("NSI")).Bind; Dict := MObj As  IRdsDictionary;
    ExportSchemas := Dict.ExportSchemas;
    ExportSchema := ExportSchemas.FindById("EXPORTSCHEMA");
    Debug.WriteLine(ExportSchema.CheckTable(Database)? "Table exists" : "Table not found");
End  Sub  UserProc;

After executing the example the table specified in the export schema is checked for existence, and checking results are output to the console.

Fore.NET Example

Imports Prognoz.Platform.Interop.Rds;
Imports Prognoz.Platform.Interop.Db;
…
Public  Sub  UserProc(Params: StartParams);
Var
    MB: IMetabase; MObj: IMetabaseObject;
    Dict: IRdsDictionary;
    ExportSchemas: IRdsExportSchemas;
    ExportSchema: IRdsExportSchema;
    Database: IDatabaseInstance;
Begin
    MB := Params.Metabase;
    MObj := MB.ItemByIdNamespace["NSI_SEP",  MB.GetObjectKeyById("NSI")].Bind();
    Dict := MObj As  IRdsDictionary;
    ExportSchemas := Dict.ExportSchemas;
    ExportSchema := ExportSchemas.FindById("EXPORTSCHEMA");
    Debug.WriteLine(ExportSchema.CheckTable(Database)? "Table exists" : "Table not found");
End  Sub  UserProc;

After executing the example, the table specified in the export schema is checked for existence, and checking results are output to the console.