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Version: 2026

HReadSeek (Example)
Usage example of the HReadSeek function
SysEnvironment (Function)
Returns the environment variables of the operating system for the current computer.
Installing and configuring HFSQL Cluster
Required configuration and overview for installing HFSQL Cluster....
NbDescribedThumbnail (Property)
The NbDescribedThumbnail property is used to get the number of thumbnails expected for an item.
SocketAccept (Function)
Run on the server, this function accepts a request for connecting to an existing socket found on the server.
Transactions: Secure processes on HFSQL data files
This chapter presents the following topics......
HReconnect (Function)
Performs a reconnection to the server for all the interrupted connections. The uninterrupted connections are not modified.
HSetIntegrity (Function)
Enables or disables the management of an integrity constraint on a file link.
<Source>.DeclareExternal (Function)
Temporarily imports into the current analysis the description of a data file from an existing HFSQL data file.
HCheckUnaltered (Function)
Checks that one or all records in an unalterable table have not been modified (e.g. with a hexadecimal editor).
ReplicSynchronize (Function)
Synchronizes the data corresponding to a replication.
The triggers
A trigger is a WLanguage procedure automatically called by the HFSQL engine whenever a modification is performed (addition, deletion, modification, ......
HPrepareQuery (Function)
Initializes a query and declares this query to the database server in order to optimize the next executions of this query.
saasUser (Type of variable)
The saasUser type is used to define the advanced characteristics of a user of SaaS site.
HCheckIndex (Function)
Checks whether the data found in the index file (.NDX file) properly refers the data found in the data file (.FIC file).
InfoThumbnailGeneration (Property)
The InfoThumbnailGeneration property is used to determine if the thumbnails of an item have been generated successfully.
NbThumbnail (Property)
The NbThumbnail property is used to get the number of thumbnails generated for an item.
MQTT constants
Constants used by the MQTT functions...