CoreDb Methods |  |
The CoreDb type exposes the following members.
Functions| Name | Description | |
|---|---|---|
  | _ErrInfoPtr | Return exception object from last RDD operation. |
| Alias |
Return the alias of a specified work area as a string.
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| Append |
Add a new record.
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| BlobInfo(DWord, DWord, Object) | Retrieve information about a memo column. |
| BlobInfo(DWord, DWord, Object) | Retrieve information about a memo column. |
| Bof |
Determine when beginning-of-file is encountered.
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| BuffRefresh | Refresh the buffer for the current Workarea, discarding any changes that were made. |
| ClearFilter |
Clear a logical filter condition.
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| ClearLocate |
Clear a locate condition by deleting the locate code block.
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| ClearRelation | Clear any active relations. |
| ClearScope | Clear the active locate condition. |
| CloseAll |
Close all files in all work areas.
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| CloseArea |
Close all files in a work area.
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| Commit |
Flush pending updates in one work area.
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| CommitAll |
Flush pending updates in all work areas.
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| Continue |
Resume a pending locate condition.
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| Create(String, RddFieldInfo, String, Logic, String, String, Logic, Logic) |
Create new file through the specified RDDs
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| Create(String, RddFieldInfo, Type, Logic, String, String, Logic, Logic) |
Create new file through the specified RDDs
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| Create(String, RddFieldInfo, _RddList, Logic, String, String, Logic, Logic) |
Create new file through the specified RDDs
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| Dbf | Return the name of the alias. |
| Delete |
Mark the current record for deletion.
|
| Deleted |
Return the deleted status of the current record.
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| Eof |
Determine when end-of-file is encountered.
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| Eval |
Evaluate a code block for each record that matches a specified scope and/or condition.
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| FCount | Return the number of fields in the current Workarea |
| FieldGet |
Retrieve the value of a specified database field.
|
| FieldGetBytes |
Retrieve the value of a specified database field as an array of bytes
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| FieldInfo(DWord, DWord, Object) | Retrieve and optionally change information about a column. |
| FieldInfo(DWord, DWord, Object) | Retrieve and optionally change information about a column. |
| FieldName |
Return the name of a field as a string.
|
| FieldPos |
Return the position of a field.
|
| FieldPut |
Set the value of a specified database field.
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| FieldPutBytes |
Retrieve the value of a specified database field as an array of bytes
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| FileGet | Import contents from file into Memo field |
| FilePut | Export field contents from Memo field to file |
| Filter |
Return a filter.
|
| Flock |
Lock an opened and shared database file.
|
| Found |
Determine if the previous search operation succeeded.
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| GetScope | Gets the locate condition. |
| GetSelect |
Return the work area number.
|
| GoBottom |
Move to the last logical record.
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| Goto |
Move to a record specified by record number.
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| GoTop |
Move to the first logical record.
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| Header | |
| Info(DWord, Object) |
Retrieve information about a work area.
|
| Info(DWord, Object) |
Retrieve information about a work area.
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| JoinAppend | Write values to destination Workarea in a JOIN operation |
| LastRec |
Return the number of the last record in a database file.
|
| Locate |
Search for the first record that matches a specified condition and scope.
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| MemoExt | Return Memo File extension |
| OrdBagExt |
Return the default index file extension for a work area as defined by the its RDD.
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| OrdCondSet |
Set the condition and scope for an order.
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| OrdCreate |
Create or replace an order in an index file.
|
| OrdDestroy |
Remove an order from an open index file.
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| OrderInfo(DWord, String, Object, Object) |
Return information about index files and the orders in them.
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| OrderInfo(DWord, String, Object, Object) |
Return information about index files and the orders in them.
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| OrdListAdd |
Open an index file and add specified orders to the order list in a work area.
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| OrdListClear |
Remove orders from the order list in a work area and close associated index files.
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| OrdListRebuild |
Rebuild all orders in the order list of a work area.
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| OrdSetFocus(String, Object) |
Set the controlling order for a work area.
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| OrdSetFocus(String, Object, String) |
Set the controlling order for a work area.
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| Pack |
Remove all records that have been marked for deletion from a database file.
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| RddCount | |
| RddInfo(DWord, Object) | Return and optionally change settings controlled directly by the RDD. |
| RddInfo(DWord, Object) | Return and optionally change settings controlled directly by the RDD. |
| RddList | Returns list of RDD names that are in use at this moment |
| RddList(_RddList, DWord) | Obsolete. |
| RddName |
Return an RDD name.
|
| RddSetDefault |
Return and optionally change the default RDD for the application.
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| Recall |
Restore the current record if it is marked for deletion.
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| Recno |
Return the current record number.
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| RecordGet | Get the contents of the current record as an array of bytes |
| RecordInfo(DWord, Object, Object) |
Retrieve information about a record.
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| RecordInfo(DWord, Object, Object) |
Retrieve information about a record.
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| RecordPut | Update the current record from an array of bytes |
| RecSize | Return the record length in the current Workarea |
| Refresh |
Discard all the changes to the current workares
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| Relation |
Return the linking expression of a specified relation.
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| RLock |
Lock the current record.
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| RSelect |
Return the work area number of a relation.
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| Seek |
Move to the record having the specified key value.
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| Select |
Select a new work area and retrieve the current work area.
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| SetFilter |
Set a filter condition.
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| SetFound |
Set the found flag.
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| SetLocate |
Specify the code block for a locate condition.
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| SetRelation |
Relate a specified work area to the current work area.
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| SetScope | Set the locate condition. |
| SetSelect |
Select a new work area.
|
| Skip |
Move the record pointer relative to the current record.
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| SkipScope | Position the cursor relative to its current position within the current scope. |
| Sort | Copy records to a database file in sorted order. |
| SymSelect |
Select a new work area by specifying its alias as a string and return the number of the current work area.
|
| Trans | Copy one or more rows from one work area to another. |
| TransRec | Copy a single row from one work area to another. |
| Unlock |
Release all locks for a work area.
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| UnlockAll | Release all locks for all work areas. |
| UseArea(Logic, String, String, String, Logic, Logic) |
Open a database file.
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| UseArea(Logic, Type, String, String, Logic, Logic) |
Open a database file.
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| UseArea(Logic, _RddList, String, String, Logic, Logic) |
Open a database file.
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| Zap | Remove all records from the current Workarea. |
See Also