When to use loadresult in Joomla database?
Use loadResult () when you expect just a single value back from your database query. This is often the result of a ‘count’ query to get a number of records: or where you are just looking for a single field from a single row of the table (or possibly a single field from the first row returned).
How to select data from a database in Joomla?
This tutorial is split into two independent parts: Inserting, updating and removing data from the database. This section of the documentation looks at selecting data from a database table and retrieving it in a variety of formats. To see the other part click here
Do you need to instantiate an object in Joomla?
Besides instantiating the object you need just two lines of code to get a result from the database in a variety of formats. Using the Joomla database layer ensures a maximum of compatibility and flexibility for your extension. Joomla’s database querying changed with the introduction of Joomla 1.6.
What are the new features of Joomla platform API?
New versions of the Joomla Platform API provide additional functionality which extends the database layer further, and includes features such as connectors to a greater variety of database servers and the query chaining to improve readability of connection code and simplify SQL coding.
How to delete multiple rows in SQL where ID?
If you need to delete based on a list, you can use IN: DELETE FROM your_table WHERE id IN (value1, value2.); If you need to delete based on the result of a query, you can also use IN: DELETE FROM your_table WHERE id IN (select aColumn from …);
How to delete a list of values in SQL?
If you need to delete based on a list, you can use IN: DELETE FROM your_table WHERE id IN (value1, value2.); If you need to delete based on the result of a query, you can also use IN: DELETE FROM your_table WHERE id IN (select aColumn from …); If you need to delete based on a range of values, either you use BETWEEN or you use inequalities: