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Returns the date of the last update for the index statistics. |
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Used to handle the idle periods of a software (period without processes) to optimize the queries and the browses that will be run thereafter. |
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Sets the position on a record, based on the approximate position of one of its items. |
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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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Crosses a record in a data file. |
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Sets the position on the last file record whose value for a specific item is less than or equal to a sought value. |
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Positions on the first record of the data file whose value for a specific item is greater than or equal to a sought value (generic search by default). |
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Positions on the first file record whose value for a specific item is greater than or equal to a sought value. |
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Moves backward several records from the current position in the data file, according to a specified item. |
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Returns the content of the current record (in a file, a view or a query, ...). |
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Stores the current file context: current record, filter, pointers. |
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Performs various statistical calculations on the file keys. |
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Returns:
the number of the current record in the HFSQL data file.
the number of the current record in the HFSQL view.... |
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Returns the number of duplicates for a given key item. |
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Returns an estimate regarding the number of entries for a given key item in a given interval of values. |
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Returns the number of entries for a given key item. |
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Deletes all records from a data file, an HFSQL view or a query. |
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Transforms all "in transaction" records into "Normal" records if they do not belong to an ongoing transaction. |
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Defines the mode for comparing data files. |
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Used to find out:
whether the content of a file was modified.
whether the content of a file used by a query was modified.... |
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Allows you to find out whether the record on which you want to be positioned is located outside the data file, filter, view or query. |
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Retrieves the structure and value of the current record and exports them into a string in JASON format. |
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Exports the records found in a data file (HFSQL or OLE DB), a view or a query to a CSV file. |
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Exports the records found in a data file (HFSQL or OLE DB), view or query to a JSON file. |
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Exports records from a data file (HFSQL or OLE DB), view or query to an Excel file (XLSX). |
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