PC SOFT

ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Home | Sign in | English EN

This content has been translated automatically. Click here to view the French version.
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
WindowsLinuxPHPWEBDEV - Browser code
WINDEV Mobile
AndroidAndroid Widget iPhone/iPadApple WatchUniversal Windows 10 AppWindows Mobile
Others
Stored procedures
CursorOptions (Property)
In french: OptionsCurseur
OLE DBNative Connectors (Native Accesses)Available only with these kinds of connection
The Property CursorOptions allows to manage the type of cursor used during a connection (Native Access, OLE DB, ...). You can:
  • Find out the type of cursor used for a connection (Native Connectors, OLE DB, ...).
  • Define the type of cursor used for the connection (Native Connectors, OLE DB, ...). In this case, if the connection is currently opened, it will be closed and reopened with the new parameters during the first access to a file that uses this connection.
Remarks:
Remark: From version 19, HFSQL is the new name of HyperFileSQL.
Example
MyConnection is Connection
// Describe the connection
MyConnection.User = "USER"
MyConnection.Password = "PASSWORD"
MyConnection.Server = "MYSERVER"
MyConnection.Database = "Database"
MyConnection.Provider = hAccessHFClientServer
MyConnection.Access = hOReadWrite
MyConnection.ExtendedInfo = "Extended information"
MyConnection.CursorOptions = hServerCursor
 
HOpenConnection(MyConnection)
Syntax

Finding out the type of cursor Hide the details

<Cursor type> = <Connection used>.CursorOptions
<Cursor type>: Integer constant
Returns the type of cursor used. This parameter can correspond to one or more of the following constants:
Cursor locations
hClientCursorCursor managed by MDAC. Offers more features than a server cursor. A client cursor must necessarily be a static cursor.
hServerCursorCursor managed by the database. This cursor can easily apply the changes performed by the other users to the data.
Cursor type
hDynamicCursorCursor offering a lot of features but consuming a lot of memory. This cursor allows all types of moves. It allows you to access all the modifications, additions and deletions performed by the other users.
hForwardOnlyCursorFast cursor consuming little memory. The move is performed from the first record to the last one. The data modified by the other users is not visible.
hOpenKeysetCursorCursor that handles a fixed set of records. Only the keys corresponding to the record are stored and not the records (consumes less memory). The deleted records can no longer be accessed. Modifications performed by other users are visible (but records added are not).
hStaticCursorMakes a copy of all query records in memory (consumes a lot of memory). All types of moves are allowed.
Blocking modes
hReadOnlyCursorThe set of records cannot be modified.
hOptimisticCursorThe record is locked when it is updated
hPessimisticCursorThe record is locked as soon as it goes into edit mode to be modified.

Remark: If no constant was specified in HDescribeConnection or in the connection, this parameter is set to 0.
Caution: Not all OLE DB providers or Native Connectors support all cursor types.
<Connection used>: Character string (with or without quotes) or Connection variable
Name of connection used. This name was defined:

Modifying the type of cursor Hide the details

<Connection used>.CursorOptions = <Cursor type>
<Connection used>: Character string (with or without quotes) or Connection variable
Name of connection used. This name was defined:
<Cursor type>: Integer constant
Returns the type of cursor used. This parameter can correspond to one or more of the following constants:
Cursor locations
hClientCursorCursor managed by MDAC. Offers more features than a server cursor. A client cursor must necessarily be a static cursor.
hServerCursorCursor managed by the database. This cursor can easily apply the changes performed by the other users to the data.
Cursor type
hDynamicCursorCursor offering a lot of features but consuming a lot of memory. This cursor allows all types of moves. It allows you to access all the modifications, additions and deletions performed by the other users.
hForwardOnlyCursorFast cursor consuming little memory. The move is performed from the first record to the last one. The data modified by the other users is not visible.
hOpenKeysetCursorCursor that handles a fixed set of records. Only the keys corresponding to the record are stored and not the records (consumes less memory). The deleted records can no longer be accessed. Modifications performed by other users are visible (but records added are not).
hStaticCursorMakes a copy of all query records in memory (consumes a lot of memory). All types of moves are allowed.
Blocking modes
hReadOnlyCursorThe set of records cannot be modified.
hOptimisticCursorThe record is locked when it is updated
hPessimisticCursorThe record is locked as soon as it goes into edit mode to be modified.

Caution: Not all OLE DB providers or Native Connectors support all cursor types.
Remarks
CtCursorOptions allows you to find out the type of cursor used during a connection. This property is kept for backward compatibility. It is advisable to use the Property CursorOptions.
See also
Minimum version required
  • Version 10
This page is also available for…
Comments
Click [Add] to post a comment