Working with Update Record Process

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Working with Update Record Process

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Process Purpose

 

The Update Record process is used to update records from a table of a remote database in a specific Host server.

 

The remote database profile you create within MCL-Designer V4 is responsible for the direct communication between your MCL-Designer project and a remote database.

Once the project is loaded into a device, that same profile can be used to allow communication between the device and the remote database/host server, via MCL-Net. Therefore, make sure that the connection string of the selected profile includes an OLE DB provider that is compatible with the intended remote database. Ex: If you intend to use an Oracle database, select a remote database profile with the corresponding driver Microsoft OLE DB for Oracle Provider.

 

 

When you add a process, you are required to define its settings. This occurs in the process's properties window which is displayed automatically after having added the Update Record process. This properties window includes three tabs - "General", "Query" and "Advanced".

If any subsequent edition is required, double-click the process to open its properties window and enter the necessary modifications.

 

General tab

 

 

Proceed as follows:

 

Host Name & Data Source

Host Name

Select a Host profile from the drop-down list or click to create a new one. See How to Create a Host Profile  or The <Default> Host Profile.

Data Source

Select the database to be updated from the drop-down list or click to add one. See To Add a Data Source to MCL-Designer V4.

Data Table

Table Name

Select the table (included in the previously selected database) to be updated from the drop-down list.

Fields to Update

DB Field Name column

Select the table's field(s) to be updated from the drop-down list.

Value/Variable column

Enter the fixed value to update in the previously selected table field(s) or click and select a variable with that value. You can update a record with up to 26 values at once. See Variable Definition.

 

Example

 

The selected database ("Inventory") contains 3 tables ("Items", "Locations" and "Warehouses"). The selected table ("Items") will have its "ItemNumber" and "ItemDescription" fields updated.

 

 

Use the editing icons to the right of the table to move the rows up and down and to delete or add more rows.

 

Go to the "Query" tab.

 

Query tab

 

 

Proceed as follows:

 

Where

Where Clause

Click to create the appropriate query. See To Use the Query Assistant. You can create up to 80 Where conditions.

 

Use the editing icons to the right of the table to move the rows up and down and to delete or add more rows.

 

Continue to the "Advanced" tab.

 

Advanced tab

 

 

Fill in the following options:

 

SQL request name (Must be unique)

Name

Define a unique name for the SQL request. One is always suggested.

If … Go to

DB Error

Select a target location from the drop-down or list, in case an "ODBC Error" occurs. See Detail of a window below.

Comm Error

Select a target location from the drop-down or list, in case there is a communications error. See Detail of a window below.

 

Detail of a window:

 

 

"S:Menu" is a screen included in the same program as the process.

"R:Routine_1" is a routine included in the same program as the process.

 

If required, use the icons on the top of the properties window:

 

Click it to setup a time out. See To Define a Time Out.

 

Click it to edit a data file. See Editing a Data File.

 

Used to test SQL Scripts. See To Test SQL Scripts.

 

Use the icon to attach any relevant notes to this process. Click it and enter your notes in the resulting text box. These notes will be displayed in the corresponding "Actions" tab or "Process" window (in the "Notes" field) and in the "Developer Report".

 

After filling in the required options, click to conclude, or to abort the operation.

 

The added process is displayed in the corresponding "Actions" tab or "Process" window.

 

 

 

Use the right click in MCL-Designer's input boxes to access certain features regarding the input box's option as well as general actions such as "Copy"; "Paste"; "Search".

Ex: If you right-click the "Variable" input box (included in a "Conversion's" properties window), you are provided with the "Search..."and "Variable Select" options.

If you right-click another input box, it will provide other possibilities.