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New WINDEV, WEBDEV and WINDEV Mobile 26 feature!
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Stored procedures
Finishes collecting information on executed queries to propose optimization keys.
Queries executed from the call to HSuggestKeyStart are analyzed to propose a set of keys to be added to your data files and improve the performance of queries.
Example
HSuggestKeyStart(MyConnection)
// Execute queries on MyConnection
// with HExecuteSQLQuery and HExecuteQuery
...
// Get suggestions
sSuggestedKeys is string = RTFToText(HSuggestKeyEnd(MyConnection))
Syntax
<Result> = HSuggestKeyEnd(<Connection>)
<Result>: Character string
Readable message for the developer, containing the list of keys to be added to the data files in order to optimize the queries.
<Connection>: Character string (with or without quotes) or Connection variable
Connection to the HFSQL server containing the queries to be analyzed. This connection corresponds to:
Remarks
  • The result obtained with HSuggestKeyEnd will take into account the 10 slowest queries. It is recommended to execute the same query multiple times with different parameters to obtain more useful results.
  • To analyze a query with a parameter, you must provide the value of the parameter when the query is executed.
    If no value is given for the query parameter(s), the query condition will not be taken into account. In that case, no keys will be suggested.
  • Keys are suggested according to the data contained in the data file. If a data file contains no data, no key will be suggested.
Business / UI classification : Business Logic
Component : wd260hf.dll
Minimum version required
  • Version 26
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