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  • Overview
  • Programming
  • 1. Opening the connection
  • 2. Running queries
  • 3. Retrieving the result
  • 4. Closing the connection
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Stored procedures
Overview
The use of SQL functions to handle DB2 data does not require importing the file structure into the analysis. However, the data must be handled by queries only. The content of the DB2 files cannot be read directly.
Programming

1. Opening the connection

SQLConnect is used to establish a connection to a DB2 database via Native Connector. The type of database used (DB2 in this case) must be passed as parameter to SQLConnect.
The database name corresponds to the name of the DB2 server (or to its alias).
ConnectionNum = SQLConnect("DB2Database", "sa", "", "", "DB2")

2. Running queries

The queries are run by SQLExec. SQLExec expects the text of the SQL query as parameter, as well as the name that will be given to this query.
SQLExec("SELECT LASTNAME, FIRSTNAME, EXTENSION, PHOTO FROM CUSTOMER", "QRY1")

3. Retrieving the result

Several methods can be used to retrieve the result:
  • SQLFirst: Used to retrieve the result and initialize an SQLFirst/SQLCol browse.
  • SQLTable: Used to retrieve the result of the query in a memory table of the WINDEV application or WEBDEV site. The result of the query can be retrieved by partial Fetch.
  • SQLFetch: Used to browse the different lines of the query result. The browse performed in the query result is an SQLFetch/SQLGetCol browse.
SQLLock is used to lock the table records or the records selected by the query.

4. Closing the connection

SQLClose is used to close the connection to the database once all the necessary queries have been run.
Minimum version required
  • Version 9
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