It has grep functionality that allows you to search for table and column names using regular expressions. SQL Schema Explorer is a open source tool that creates a dynamic website visible only to you that gives you effortless access to the tables, relationships, and data in your database.
It is a visual database design system that integrates database design, modeling, creation and maintenance into a single, seamless environment. Jeddict is an open source development platform that simplifies development tasks of creating complex entity relationship models. Make it available again by importing the existing database and create new ER diagram.
It generates true 3D anaglyphic views from your database structure and has an integrated reverse engineering module for existing schemas. Using the advanced reverse engineering software you can create a new ERD diagram from an existing database.
It also has the ability to import existing database design. It builds a program database and generates information from this. The purpose of reverse engineering is to facilitate the maintenance work by improving the understandability of a system and to produce the necessary documents for a legacy system. Reverse Engineering Goals: Cope with Complexity. Recover lost information. Detect side effects. Synthesise higher abstraction. Facilitate Reuse. Skip to content.
Change Language. If you are reverse engineering an Excel workbook, before you start the wizard you need to open the workbook and name the group or range of cells that contain the column headings. If you want to use more than one worksheet, just name the group of column cells in each worksheet. These ranges are treated like tables in the wizard. For more information about how to name a range of cells, see the Excel help.
For best results, set your default driver to the target database that you want to reverse engineer before you run the Reverse Engineer Wizard. This ensures that the wizard maps the native data types correctly and that all the code extracted by the wizard displays correctly in the Code window.
On the Database tab, in the Manage group, click Database Drivers. For example, if you are designing an Access database you would choose Microsoft Access.
In your database model diagram, on the Database tab, click Reverse Engineer. If you have not already associated the Visio database driver with a particular ODBC data source, click Setup to do so now.
Select the data source of the database you are updating. If you have not already created a data source for the existing database, click New to do so now. Follow the instructions in any driver-specific dialog boxes. For example, in the Connect Data Source dialog box, type a user name and password, and then click OK.
If your data source isn't password protected, click OK. Select the check boxes for the type of information that you want to extract, and then click Next. Some items may be grayed out because not all systems support all the kinds of elements the wizard can extract. Select the check boxes for the tables and views, if any that you want to extract, or click Select All to extract them all, and then click Next. If you are reverse engineering an Excel worksheet and don't see anything in this list, then it is likely that you need to name the range of cells that contain the column headings in your spreadsheet.
If you selected the Stored Procedures check box in step 3, select the procedures that you want to extract, or click Select All to extract them all, and then click Next. You can choose to have the wizard automatically create the drawing in addition to listing the reverse engineered items in the Tables and Views window.
Review your selections to verify that you are extracting the information you want, and then click Finish. If you use the ODBC Generic Driver, you may receive an error that indicates that the reverse engineered information may be incomplete. In most cases this isn't a problem — just click OK and continue with the wizard. The wizard extracts the selected information and displays notes about the extraction process in the Output window.
We're sorry. In order to use the database modeling features, consider upgrading to Visio Plan 2.
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