by lathouDBF Table is a useful data-aware component that provides access to DBF files without BDE.
It’s based on TDataset. It supports simple filtering and searching and can display and undelete deleted records.
Requirements:
￭ Delphi 5, 6
DBF Table Free Download PC/Windows
￭ Provides access to DBF files without BDE
￭ Supports filtering and searching
￭ Provides support for displaying and undeleteing deleted records
￭ DataSnap support
￭ Provides BDE compatible units (drew and datamodel units)
￭ Supports simple SQL
￭ Supports SQLite and ODBC databases
Usage:
1) Define a DBF dataset. For example:
Dim vNewDataSet : TTable = TableModule1.OpenDataset(“C:\tmp\test.dbf”);
2) Define a new DBF Table Activation Code if it does not exist. For example:
TTableModule1.CreateTable(“TestTable”);
3) Use the DBFTable to query the DBF file. For example:
DBFTable1.Filter(“TestColumn=TestValue”);
4) If desired, you may display a DataSnap Client component in the form. For example:
DBFTable1.Refresh(Client)
5) To update a record, use the UpdateRow method. For example:
DBFTable1.UpdateRow(TTableRow(“*Field*”))
6) To delete a record, use the DeleteRow method. For example:
DBFTable1.DeleteRow(TTableRow(“*Field*”))
7) To undelete a record, use the UndeleteRow method. For example:
DBFTable1.UndeleteRow(TTableRow(“*Field*”))
8) To Clear a field, use the ClearField method. For example:
DBFTable1.ClearField(“*Field*”);
9) To set a field, use the SetField method. For example:
DBFTable1.SetField(“*Field*”,*Value*);
10) To query a field, use the GetField method. For example:
DBFTable1.GetField(“*Field*”)
11) To get a list of all fields, use the GetFieldNames method. For example:
DBFTable1.GetFieldNames()
Using BDE is the only way to access DBF, and BDE is not always available.
DBFTable, like most other BDE components, is BDE only.
The following guidelines apply to using DBFTable:
1) DBFTable is a TDataset compatible
DBF Table
DBF Table Cracked 2022 Latest Version is a useful data-aware component that provides access to DBF files without BDE.
￭ Delphi 5, 6
It’s based on TDataset. It supports simple filtering and searching and can display and undelete deleted records.
￭ DBF files
It supports buffering and transactions. It can be used in both 64 and 32 bit applications.
￭ The Database Toolkit is required to run the sample application.
￭ DBFView 1.1 and later
Various
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DBF Table
￭ The DBF table class implements the IADataset interface and allows you to query the
contents of a DBF file without using the BDE. The class provides methods for
examining the table schema, adding and deleting records, and searching for records
containing a particular value. It is possible to display a record and its original data.
The class represents a table and a record as a TDbTableRecordSet and
TDbTableRecord respectively. The record objects are for internal use only; you
must never access the TDbTableRecordSet and TDbTableRecord objects directly.
The best way to get started using the DBF Table is to use the TDataSet functions.
Before you use the TDBTable functions you must first load the DBF file and create
a new TDbTable record set to use as a table.
DBF Table Table Description:
￭ When you call the Load() method, the DBFTable parses the data in the file,
detecting any errors, and creates a data cache and data adapter for it. It creates
the TDbTableRecordSet object and the TDbTableRecord object for the table and
each record in the table. It then loads the content of the file in the TDbTableRecordSet
and adds the records in the table in the TDbTableRecord.
The object reference of the TDbTableRecord set is returned to you. It can be used
as a control in TDBTable components to manipulate table records. Each record has a
unique ID that is assigned to each record in the table when the table is created and
can be used to access any record by its ID.
When a new record is added to the table, the DBFTable generates an action ID
and the ID of the new record to add to the record set. If you have a record with the
same ID that is already in the record set, the DBFTable updates the record and its
fields.
As the record set has the same format as the table, the DBFTable detects column
name mapping automatically. If this is not correct, you can specify the correct
mapping by calling the SetColumnNames() method.
The above steps are performed in SQL (with DDL) and VBScript (with
DDL).
If the DBFTable gets a table and record set from a TDBTable component, it
What’s New in the DBF Table?
Version 1.0, Jan 30, 2006
2) SearchIndex:
It’s a global index over all tables in a DBF file. It’s possible to insert or delete some records without repairing the index.
￭ Delphi 5, 6
￭ Optimized for fast searching on large DBFs
￭ It can be configured to use the whole disk or only the first sector
￭ Only the first sector is used, when you restore a DBF file to its original size
3) TDBFTable:
This is an extended object for TDataSource with an additional property as lastrecord:
TRestoredRecord.
4) TDBFTableDataSource:
￭ Inherits from TDataSource
￭ Has a property that indicates if it’s a TDBFTable, which is not visible in the IDE
5) TRestoredRecord:
It wraps a DBF Record. It’s an object that contains a record identifier, record type, record size, number of fields and a pointer to the field list.
￭ It’s static class so it’s used only for input and output procedures
￭ TRestoredRecord instances hold pointers to the TDBFTable (a.k.a. TDBFDataSet) instance
￭ These records can be used to restore a DBF file after an update
￭ It’s used only to find out which field is the filename in a.dbf
A) Fields:
￭ STRING, Yes (s)ized
￭ FIELD INDEX, No
￭ FIELD POSITION, Yes
￭ BEHAVIOR, Yes
￭ FIELD CAPTION, No
￭ FIELD BINARY, Yes
￭ FIELD BINARY EXT, No
￭ FIELD BINARY PERSISTED, Yes
￭ FIELD BINARY VISIBLE, No
￭ FIELD CHARACTER, Yes
￭ FIELD CHARACTER NUMERIC, Yes
￭ FIELD CHARACTER EXT, No
￭ FIELD CHARACTER PERSISTED, Yes
￭ FIELD CHARACTER VISIBLE, No
￭ INTEGER, Yes
￭ REFERENCE NUMBER, Yes
￭ LONG
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System Requirements For DBF Table:
Minimum:
OS: Windows 7/Vista/XP (32-bit or 64-bit)
CPU: Intel Core 2 Duo 2.4 GHz or AMD Athlon X2 4400+
Memory: 2 GB RAM
Graphics: 64 MB DirectX 9.0-compatible video card with
DirectX 9.0-compatible video card with 512MB RAM
Hard Disk: 250MB available space
Sound Card: DirectX 9.0-compatible sound card with
DirectX 9.0-compatible sound card with 256MB
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