ADO Recordset Object
This example demonstrates how to use the GetRows method.
The ADO Recordset object is used to hold a set of records from a database table. A Recordset object consist of records and columns (fields).
In ADO, this object is the most important and the one used most often to manipulate data from a database.
When you first open a Recordset, the current record pointer will point to the first record and the BOF and EOF properties are False. If there are no records, the BOF and EOF property are True.
Recordset objects can support two types of updating:
- Immediate updating - all changes are written immediately to the database once you call the Update method.
- Batch updating - the provider will cache multiple changes and then send them to the database with the UpdateBatch method.
In ADO there are 4 different cursor types defined:
- Dynamic cursor - Allows you to see additions, changes, and deletions by other users.
- Keyset cursor - Like a dynamic cursor, except that you cannot see additions by other users, and it prevents access to records that other users have deleted. Data changes by other users will still be visible.
- Static cursor - Provides a static copy of a recordset for you to use to find data or generate reports. Additions, changes, or deletions by other users will not be visible. This is the only type of cursor allowed when you open a client-side Recordset object.
- Forward-only cursor - Allows you to only scroll forward through the Recordset. Additions, changes, or deletions by other users will not be visible.
The cursor type can be set by the CursorType property or by the CursorType parameter in the Open method.
Note: Not all providers support all methods or properties of the Recordset object.
|AbsolutePage||Sets or returns a value that specifies the page number in the Recordset object|
|AbsolutePosition||Sets or returns a value that specifies the ordinal position of the current record in the Recordset object|
|ActiveCommand||Returns the Command object associated with the Recordset|
|ActiveConnection||Sets or returns a definition for a connection if the connection is closed, or the current Connection object if the connection is open|
|BOF||Returns true if the current record position is before the first record, otherwise false|
|Bookmark||Sets or returns a bookmark. The bookmark saves the position of the current record|
|CacheSize||Sets or returns the number of records that can be cached|
|CursorLocation||Sets or returns the location of the cursor service|
|CursorType||Sets or returns the cursor type of a Recordset object|
|DataMember||Sets or returns the name of the data member that will be retrieved from the object referenced by the DataSource property|
|DataSource||Specifies an object containing data to be represented as a Recordset object|
|EditMode||Returns the editing status of the current record|
|EOF||Returns true if the current record position is after the last record, otherwise false|
|Filter||Sets or returns a filter for the data in a Recordset object|
|Index||Sets or returns the name of the current index for a Recordset object|
|LockType||Sets or returns a value that specifies the type of locking when editing a record in a Recordset|
|MarshalOptions||Sets or returns a value that specifies which records are to be returned to the server|
|MaxRecords||Sets or returns the maximum number of records to return to a Recordset object from a query|
|PageCount||Returns the number of pages with data in a Recordset object|
|PageSize||Sets or returns the maximum number of records allowed on a single page of a Recordset object|
|RecordCount||Returns the number of records in a Recordset object|
|Sort||Sets or returns the field names in the Recordset to sort on|
|Source||Sets a string value or a Command object reference, or returns a String value that indicates the data source of the Recordset object|
|State||Returns a value that describes if the Recordset object is open, closed, connecting, executing or retrieving data|
|Status||Returns the status of the current record with regard to batch updates or other bulk operations|
|StayInSync||Sets or returns whether the reference to the child records will change when the parent record position changes|
|AddNew||Creates a new record|
|Cancel||Cancels an execution|
|CancelBatch||Cancels a batch update|
Cancels changes made to a record of a Recordset object
|Clone||Creates a duplicate of an existing Recordset|
|Close||Closes a Recordset|
|CompareBookmarks||Compares two bookmarks|
|Delete||Deletes a record or a group of records|
|Find||Searches for a record in a Recordset that satisfies a specified criteria|
|GetRows||Copies multiple records from a Recordset object into a two-dimensional array|
|GetString||Returns a Recordset as a string|
|Move||Moves the record pointer in a Recordset object|
|MoveFirst||Moves the record pointer to the first record|
|MoveLast||Moves the record pointer to the last record|
|MoveNext||Moves the record pointer to the next record|
|MovePrevious||Moves the record pointer to the previous record|
|NextRecordset||Clears the current Recordset object and returns the next Recordset object by looping through a series of commands|
|Open||Opens a database element that gives you access to records in a table, the results of a query, or to a saved Recordset|
|Requery||Updates the data in a Recordset by re-executing the query that made the original Recordset|
|Resync||Refreshes the data in the current Recordset from the original database|
|Save||Saves a Recordset object to a file or a Stream object|
|Seek||Searches the index of a Recordset to find a record that matches the specified values|
|Supports||Returns a boolean value that defines whether or not a Recordset object supports a specific type of functionality|
|Update||Saves all changes made to a single record in a Recordset object|
|UpdateBatch||Saves all changes in a Recordset to the database. Used when working in batch update mode|
Note: You cannot handle events using VBScript or JScript (only Visual Basic, Visual C++, and Visual J++ languages can handle events).
|EndOfRecordset||Triggered when you try to move to a record after the last record|
|FetchComplete||Triggered after all records in an asynchronous operation have been fetched|
|FetchProgress||Triggered periodically in an asynchronous operation, to state how many more records that have been fetched|
|FieldChangeComplete||Triggered after the value of a Field object change|
|MoveComplete||Triggered after the current position in the Recordset has changed|
|RecordChangeComplete||Triggered after a record has changed|
|RecordsetChangeComplete||Triggered after the Recordset has changed|
|WillChangeField||Triggered before the value of a Field object change|
|WillChangeRecord||Triggered before a record change|
|WillChangeRecordset||Triggered before a Recordset change|
|WillMove||Triggered before the current position in the Recordset changes|
|Fields||Indicates the number of Field objects in the Recordset object|
|Properties||Contains all the Property objects in the Recordset object|
The Fields Collection's Properties
|Count||Returns the number of items in the fields collection. Starts at zero.
|Item(named_item/number)||Returns a specified item in the fields collection.
The Properties Collection's Properties
|Count||Returns the number of items in the properties collection. Starts at zero.
|Item(named_item/number)||Returns a specified item in the properties collection.
itemprop = rs.Properties.Item(1)
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