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Version: 2025

How to create and run an SQL query through programming?
This help page explains how to create and run an SQL query through programming.
Report based on an SQL query with data accessed via a connection (ODBC, etc.)
A report based on an SQL query with data accessed via a connection can print records from a database accessible via a specific ODBC driver or via a Native Connector...
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
<Source>.ExecuteSQLQueryAsynchronous (Function)
Executes an SQL query asynchronously.
SQL query (WLanguage type)
The "SQL query" type is used to write an SQL query in the WLanguage code.
HExecuteSQLQueryAsynchronous (Function)
Executes an SQL query asynchronously.
SQLExec (Function)
Names and runs an SQL query.
SQL selection conditions
To specify the selection conditions in an SQL query, you can use......
How to create an SQL query to get a sum?
This help page explains how to create a Sum query with the query editor....
How to create an SQL query to count?
This help page explains how to create a count query with the query editor....
How to create an SQL query to filter records?
This help page explains how to create an SQL query to filter records....
Overloading a WLanguage function or using a WLanguage function in an SQL query
WLanguage includes the "WL" keyword......
How to create an SQL query with a calculation formula?
This help page explains how to create a query with a calculation formula with the query editor....
SQL view
An SQL view is a virtual data source defined by an SQL query......
How to sort the result of a query?
This help page explains how to create a sort query with the query editor....
SQL: Managing joins (INNER JOIN, OUTER JOIN)
To select records coming from several data files, joins must be used in the SQL query......
How to create an SQL query to get a TOP 10?
This help page presents the method for creating an SQL query used to get the first 10 records......
How to loop through a file using filters?
SQL : ORDER BY clause: Organizing the result of a query
The ORDER BY clause is used to sort the records selected by an SQL query......
HFSQL Control Center: Creating and executing a query
The HFSQL Control Center allows you to create a query based on the data files of the database currently displayed in the Control Center......
<Source>.ExecuteSQLQuery (Function)
Initializes a query written in SQL language and declares this query to the HFSQL engine.
HExecuteSQLQuery (Function)
Initializes a query written in SQL language and declares this query to the HFSQL engine.
How to create a query with external join?
In SQL language, an external join is used to exclude or include file records with or without correspondences in the linked files......
Materialized view
ODBCSQLCode (Property)
ODBCSQLCode is used to: Find out the SQL code of the "query performed on a connection" (data source of report). Modify the SQL code of the "query performed on a connection" (data source of report)....
HPrepareSQLQuery (Function)
Initializes a query written in SQL language and declares this query to the database server in order to optimize the next executions of this query.
<Source>.PrepareSQLQuery (Function)
Initializes a query written in SQL language and declares this query to the database server in order to optimize the next executions of this query.
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