edmiDeleteAllScratchInstancesOfSchema

EdmiError edmiDeleteAllScratchInstancesOfSchema(SdaiSchema schemaId);

Delete all scratch instances of the specified schema, i.e., all scratch instances of entities defined in the actual Express schema. Scratch instances are volatile instances that will never be written to the persistent EDMdatabase. No persistent instances can have relations to a scratch instance, but a scratch instance can have relations to persistent instances. Scratch instances belongs to a session, hence scratch instances cannot be shared by concurrent users of an EDMdatabase. All scratch instances created in a session will be permanently deleted when the actual session is closed or the database is closed.

Arguments

Type	Name	Comment
SdaiSchema	schemaId	A numeric schemaID that uniquely identifies an Express schema in an EDMdatabase. All scratch instances defined by entities in the <schemaId> Express schema will be deleted. The schemaID is retrieved by the edmiGetSchema operation.

Return Value

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Options

Example

 EdmiError rstat;
 SdaiSchema schemaId;
 ...
 if (rstat = edmiDeleteAllScratchInstancesOfSchema (schemaId)) {
 /* Error in operation */ 
 printf("\nError in edmiDeleteAllScratchInstancesOfSchema: %s\n", 
 edmiGetErrorText(rstat)); 
 goto error; 
 }
 . . .

EDMsix

edmiDeleteAllScratchInstancesOfSchema

Arguments

Return Value

Options

Example

See also

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