DELPHI SQLCONNECTION DRIVER DOWNLOAD

Below, you will find the results of tnsping. Summary of what happened: At run time, your program will rely on the properties to have all the required information, so you don’t need to deploy the two INI files along with your programs. The name of each combination is called a connection name. However, in case you want to connect your program to a new database, you can set directly the relevant properties.

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When you add a new SQLConnection component to an application, you can proceed in different ways. The SimpleDataSet component is new in Delphi 7. The ‘XE’ entry was also provided in my second post, above. The particular parameters you need depend on the database server you are using.

Values property to assign values to individual parameters. Although you can always specify a connection using only the DatabaseName and Params properties, it can be more convenient to name a specific combination and then just identify the connection by name. In addition to letting you edit the predefined connection settings, the dbExpress Connection Editor allows you to select a connection for the SQLConnection component by clicking the OK button.

Delphi Sources – The dbExpress Components – English Delphi Programming Guide

Thank you so much for your guiding hand. XE” and then “localhost: When you create a new connection, the system will delphj the default parameters from the driver; you can then edit them for the specific connection—for example, providing a proper database name.

Of course this is also the option you’ll want to use for unattended connections, for example on delpni Web server. However, in case you want to connect your program to a new database, you can set directly the relevant properties. For example, the InterBase section reads as follows: Here is the result of changing the Oracle Connection Home: At run time, your program will rely on the properties to have all the required information, so you don’t need to deploy the two INI files sqclonnection with your programs.

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As I mentioned earlier, of the four dataset components for dbExpress, the fundamental one is TSQLDataSetwhich can be used both to retrieve a dataset and to execute a command. This class and its derived classes represent unidirectional datasets, with the key features I’ve already described.

Delphi + MySQL + SQLConnection

ReadCommitted 10 OS Authentication: I have tried the following: In addition to having limited navigational capabilities, these datasets have no editing support, so a lot of methods and events common to other datasets are not available.

In addition to this issue, the component has other limitations, including difficulty dekphi the dataset fields of the data access dataset which is important for sqlconnectionn key fields and can affect the way updates are generated and unavailability of some provider events.

Of course, you should also use this option for unattended connections, such as on a web server. The component is meant to be a helper—you need only one component instead of four which must wqlconnection be connected.

In practice, this means that the browse operations are celphi to calling First and Next; PriorLastLocatethe use of bookmarks, and all other navigational features are disabled.

The important thing to notice is that these initialization files are used only at design time.

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The SQLConnection Component – Mastering Delphi

In each of the dataset componentsyou cannot specify directly which database to use, but can only refer to a SQLConnection. You can use this dialog to indicate the connection to use by selecting a driver and connection name. This page was last modified on 21 Novemberat The relationships between connection names and their associated driver and connection parameters is stored in the dbxconnections.

Once you have chosen the configuration you want, click the Test Connection button to check that you have chosen a valid configuration.

What really matters for the SQLConnection component is the value of its properties. The Connection Editor appears, with a drop-down list containing all available drivers, a list of connection names for the currently selected driver, and a table listing the connection parameters for the currently selected connection name.

In practice, you could set up a SQLConnection component by setting up the driver and then assigning the database name directly in the Params property, forgetting about the predefined connection. However, if you want to connect your program to a new database, you can set the relevant properties directly. The connection describes the physical database you want to connect to. You can name dbExpress database delpgi parameter combinations, which are then saved in a file called dbxconnections.

At run time, use the Params.