PV Standard Search Query
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Use the standard search query for searching for information within ProdigyView.
Transcript of PV Standard Search Query
Standard Search Query
Purpose: Learn on to modify and customize select queries in ProdigyView without modifying the core.
Requirements
• Installed Version of ProdigyView
• A basic understanding of SQL
Estimated Time: 5 minutes
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Overview What is the Standard Search Query?
Custom Where
Custom Join
Custom Select
Group By
Having
Order By
Limit
Prequery
Pagination
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What Exactly is the ‘Standard Search Query’
To begin, all elements of ProdigyView can be search through by their list functions. Examples:
pv_getContentList()
pv_getApplicationList()
pv_getMenuList()
pv_getUserList()
etc etc etc
What the lists really are is SQL SELECT statements. What the Standard Search Query is a standardization of each list that allows developers to modify the select statement.
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Parts of A Select Statement
To effectively use the Standard Search Query, you should know the parts/clauses of a select statement. Lets take a second to review those parts.
PREQUERY[DATABASE DEPEDENT]
SELECT LIST
JOINS
WHERE
GROUP BY
HAVING
ORDER BY
LIMIT[DATABASE DEPENDENT]
When converted into SQL, those parts should look something like this in a PSUEDO code and then in a query.
[PREQUERY] SELECT [SELECT LIST] FROM TABLE [JOINS][WHERE][HAVING][GROUP BY][ORDER BY]
SELECT id, name FROM EXAMPLE_TABLE WHERE name=‘John’ ORDER BY registration_date LIMIT 5
Custom WhereThe custom where allows modification of the WHERE part of a select statement.
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Custom SelectThe Custom Select allows modification of the select list of the select query. Otherwise the ‘*’ is used to select all elements.
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Group By
Group By will allow modification of the Group By clause of a select statement.
HavingCustomize the Having part of the SELECT query.
Order ByOrder By will select the order in which your select will return values. Use ASC and DESC if needed.
LIMITThe Limit is database dependent. In a database like mysql the limit will be attached to the end of the query. In SQL Server, the limit will be attached to the beginning of the and will be changed to TOP. But the difference is not something the developer needs to worry about since ProdigyView takes cares of it automatically.
PREQUERYSimilar to the Limit, the Prequery is a database dependent function. It puts variables before the the select statement. The next example uses SQL Server as the database.
PaginationProdigyView does offer pagination and it is part of the Standard Search Query. But pagination has enough material that it warrants its own tutorial and will not be covered in this one.
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The EndCongratulations!
You’ve come to the end on the tutorial of how to use custom queries. Remember to use the queries to expand the limitations of ProdigyView quickly and easily.
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