Native PostgreSQL Connector for WINDEV and WEBDEV

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Native PostgreSQL Connector

Native PostgreSQL Connector for WINDEV and WEBDEV

Overview

Required configuration

Use

See also

Native PostgreSQL Connector for WINDEV and WEBDEV

Available only with this kind of connection

Overview

WINDEV and WEBDEV 28 include a Native PostgreSQL Connector (or Native PostgreSQL Access), available in 32 and 64-bit mode. This Native Connector allows you to access a PostgreSQL database from a WLanguage program without using any external driver.

Caution: This version of the Native PostgreSQL Connector works with WINDEV and WEBDEV version 28.

Remark: The Native PostgreSQL Connector is an optional and free module that can be downloaded from the PC SOFT site.

Required configuration

Conditions for using a Native Progress Connector

We recommend that you use a recent PostgreSQL client layer, whose version is identical to the version of your server if possible.

To do so, you must:

Copy the DLLs of PostgreSQL client layer into the setup directory of WINDEV or WEBDEV on the development computer.
Remark: It is necessary to also copy all the dependencies delivered with the client layer.
Copy the DLLs of PostgreSQL client layer into the executable directory or into the Windows directory on the development computer.
Remark: It is necessary to also copy all the dependencies delivered with the client layer.
Install the DLLs of Visual runtime (package that can be downloaded from Microsoft site).
Remark: The version of the visual runtime depends on the PostgreSQL client layer.

In 32-bit mode, if these DLLs are not found, the Native PostgreSQL Connector will use a standard client layer (PostgreSQL version 7.4.23). It contains all the necessary features for the Native Connector and is compatible with servers up to version 9.6. If you use a server in a more recent version, install a version of the client layer compatible with your server.

The PostgreSQL client layer should be installed with the Linux distribution package manager. Dependencies will also be installed.
Example (Debian):

apt-get install libpq5

Remark: To use the SSL connections, you must install a PostgreSQL client layer version 9.1 or later.

Specific file supplied with Native PostgreSQL Connector

To use Native PostgreSQL Connector:

in 32 bits, only the DLL wd28 0postgresql.DLL is needed. This file is provided with the Native PostgreSQL Connector for WINDEV and WEBDEV.
in 64 bits, only the DLL wd28 0postgresql64.DLL is needed. This file is provided with the Native PostgreSQL Connector for WINDEV and WEBDEV.

Use

Using Native PostgreSQL Connector in your WINDEV applications and WEBDEV sites

To use PostgreSQL in native mode, you must program in the WINDEV application or in the WEBDEV site:

with the "SQL" functions of WLanguage (see Programming with SQL functions).
with the "HFSQL" functions of WLanguage (see Programming with HFSQL functions).

Remarks:

Don't forget to read the limitations of the Native PostgreSQL Connector.
The "Automatically create the data files if they do not exist" option (in the "Files" tab of the project description) is taken into account by the Native PostgreSQL Connector.