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Do you handle databases? Are you looking for a career in Dbase? Are you worried for it's job interview preparation? Then do not worry, we’ve a right answer for your job interview preparation. If you are preparing for Dbase job interview and don’t know how to crack interview and what level or difficulty of questions to be asked in job interviews then go through Wisdomjobs Dbase interview questions and answers page to crack your job interview. Dbase is also referred to dBASE is the first database management systems for microcomputers. It includes a database engine, a query system and forms engine and programming language binding together. Below are the frequently asked Dbase interview questions and answers which can make you feel comfortable to face the interviews:
dBase was one of the first database management systems for microcomputers, and the most successful in its day. The dBase system includes the core database engine, a query system, a forms engine, and a programming language that ties all of these components together.
DBF is a file format typically used by database software. DBF stands for DataBase File. DBF files were originally used in dBase II and continued through to dBase Version IV.
Launch Microsoft Excel. Press "Ctrl-O" or click on the "File" tab and choose "Open." Set the "Files of Type" drop-down menu in the Open dialog box to "dBase Files (.dbf)." Navigate to the location of the database document you want to open.
DBF files were originally used in dBase II and continued through to dBase Version IV. The DBF file format originated by Ashton-Tate, but is understood by Act!, Clipper,FoxPro, Arago, Wordtech, xBase, and similar database ordatabase-related products. DBF files can also be opened by Microsoft Excel and Microsoft Access.
Open Access: Click on the Start button, select Programs, Microsoft Office, then click on Microsoft Access. Select blank database. The "File New Database" window will appear. Select Desktop (or directory where you saved the .dbf file) in the "Save in" box at the top of the window.
Instructions to open a DBF file in Excel :
Below are basic instructions for opening a DBF file in Excel. For more detailed instructions, view Instructions for Opening a Database File in Excel (DOC; 1MB).
Right click on pubschls.dbf link and select "Save target as." When the "SAVE AS" Window appears, fill in the three boxes as directed below:
Save in: Desktop or directory of choice
File Name: pubschls.dbf
Save as Type: All
Close the "Download Complete" Window after the file is finished downloading.
Select File, Open.
In the "Look In" drop down box, select the desktop or directory in which you saved the file and in the Files of Type drop down box, select: All Files (*.*).
Double click on the file name.The .dbf file will now open in Excel.
With connection to an iSeries driver via ODBC….
Users have found that newer versions of the Microsoft dBASE ODBC Driver (version 3.0 or newer) can be used to read level 7 tables in newer versions of Crystal Reports. (Even though it is not 'officially' reported as such.)
Therefore you should be able to use the Microsoft dBASE ODBC Driver to connect to data through Crystal Reports.
Before creating a DSN for your Dbase tables, please ensure that your ODBC Driver is 3.0 or higher.
Start -> Control panel -> Administrative tools ->Data sources (ODBC) -> ‘Driver’ Tab.
From the ODBC Administrator (the same dialog that configures your datasource),
Log on as system admin and change the Data Execution Prevention on for "All programs and services except those I select" and then add the name of each executable to the list. For example ... plusrun.exe, plus.exe, dQuery.exe., (or for the installers plus-setup.exe or dqsa-setup.exe)
Data Execution Prevention is a mechanism built into some CPU's to check whether or not the data within a particular chunk of memory is tagged as code or as data before allowing any address in that chunk of memory to be used by the CPU to execute any instructions.
To export records, select menu "File/Save As". You can select the fields to be exported and specify their order. DBF Viewer allows you export records with memo to Excel(xls, xlsx), CSV, TXT, XML, SQL and HTML file formats.
To edit a memo field, select record in the list and double-click on the "Memo". Memo editor allows you view, edit, print and export to text file.
To edit a dbf file, select record in the list and double-click or press Enter
DBase history can be traced back to 1978, when it was created by Wayne Ratliff and initially named the "Vulcan." In the 1980s, Ashton-Tate purchased Vulcan and marketed it as DBase II, which is considered to be the first DBase version.
DBF Recovery empowers its users with the ability to recover a damaged database back to its pristine condition without needing the expertise to accomplish such a task or requiring the additional expense of hired recovery services. When the program runs, you see a simple interface with two main fields. Select the file for recovery in the first field and the folder for the output in the second.
As an added option, you can choose to recover deleted records in the database. Once everything is set, you click on the Start button. DBF Repair Tool does the rest. It repairs the headers and data structures in an automatic process that involves no interaction with the user. After all you may not want to sit around and watch the process. With DBF Recovery, you'll truly have a lean, mean DBF repairing machine without functional fluff.
dBASE Plus, beginning with version 2.61.4, supports running application exe's that have been code signed.
Code Signing is a method of identifying who the publisher of an executable file is and ensuring that the file has not been altered since publication.
It works by adding a digital signature to the end of an executable file which can then be checked at runtime for its authenticity.
A digital signature consists of a digital certificate along with a publisher's public key that has been issued by a certification authority (such as VeriSign, Thawte, or Comodo). A part of the digital certificate is encrypted using the publisher's private key.
Most of the old XBASE commands that run on VFP will also run on dBASE except in cases where FoxPro diverged from the dBASE syntax or invented new syntax.
However, the newer object oriented features in VFP, such as Forms, Entryfields, PushButton's etc are very different from the equivalent dBASE features.
At this time there are no conversion tools available to convert from VFP to dBASE Plus.
However, we have compiled 3 text files that show how Visual FoxPro commands map to dBASE Plus.
Some of these items can be replicated in dBASE by using add-on libraries or by custom coding.
The XP manifest file is used to have your form objects look like the new XP common controls. Because of this, pushbuttons; rectangles; notebooks and possibly other objects have their color settings all or partially overwridden.
The pushbutton has a property called systemTheme which when set to false (the default is true) will ignore the manifest file and use the old common controls thereby allowing the color settings to show.
Use built-in import wizard for importing data from xls, txt, csv, xlsx, xml, dbf file formats.
You can easy add, rename, and delete fields in your dbf files by using table structure designer.
The .cdx, .mdx, .ndx, .ntx index files contain and maintain pointers to records in the table (.dbf) file and is organized according to the index key values. An index file is separate from but associated with a .dbf file. So, you should open a .dbf file firstly and then associated index file(s) if needed.
Unlike .cdx/.mdx files that open automatically when the associated table is opened, you must open a .ndx/.ntx file explicitly using program's Index Manager dialog box (File->Index manager menu item).
Index files are only relevant for searching in the DBF - you really don't need them (i.e. you CAN read the .dbf data file without the index file). Removing the index file might break you application though.
The business customers can use the visual report designer (with a complete set of layout and design controls), to design highly formatted, interactive, and professional looking reports. Reports can be exported and repurposed to the electronic formats used by most end users (e.g. PDF and Excel).
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