what are all the types of joins available in webfocus?
435316
There are two types of multi-field joins: Multi-field joins in which you join multiple host fields to multiple cross-referenced fields. Concatenated joins in which the field resulting from the concatenation of two host fields is joined to a single cross-referenced field.
820596
['Hierarchical databases.', 'Network databases.', 'Relational databases.', 'Object-oriented databases.', 'Graph databases.', 'ER model databases.', 'Document databases.', 'NoSQL databases.']
1320539
1. Logical Joins: These joins are simple joins that we apply in our SQL queries, like INNER JOIN, RIGHT/LEFT OUTER JOIN, CROSS JOIN, OUTER APPLY, etc. 2. Physical Joins: These are the joins that users don't use/write in their SQL queries.
1288146
['JavaScript local/global scope.', 'JavaScript local/global scope (arrow functions)', 'JavaScript IIFE (Immediately Invoked Function Expression)', 'JavaScript IIFE (arrow functions)', 'Model-view-controller design-pattern.', 'Model-view-controller design-pattern (arrow functions)', 'Async and Await promises.']
415448
['Navigational search queries.', 'Informational search queries.', 'Transactional search queries.']
1304321
The simplest and most common form of a join is the SQL inner join the default join-types of most of the database management systems. It's the default SQL join you get when you use the join keyword by itself. The result of the SQL inner join includes rows from both the tables where the join conditions are met.
601335
(INNER) JOIN: Returns records that have matching values in both tables. LEFT (OUTER) JOIN: Returns all records from the left table, and the matched records from the right table. RIGHT (OUTER) JOIN: Returns all records from the right table, and the matched records from the left table.
504862
Oracle JOINS are used to retrieve data from multiple tables. An Oracle JOIN is performed whenever two or more tables are joined in a SQL statement. There are 4 different types of Oracle joins: Oracle INNER JOIN (or sometimes called simple join)
1228838
['concatMap could be used as a conservative choice;', 'mergeMap should not be used — the ordering of the results is important;', 'switchMap could be used — when a new search is made, pending results are no longer needed; and.']
1175073
['Microsoft SQL Server.', 'Microsoft SQL Server Analysis Services for MDX, DMX, Microsoft Power Pivot, and tabular models.', 'Microsoft Azure SQL Database.', 'Oracle.', 'SAP BW.', 'Hyperion Essbase.', 'Microsoft SharePoint List.', 'Teradata.']
1419706
['Centralised database.', 'Distributed database.', 'Personal database.', 'End-user database.', 'Commercial database.', 'NoSQL database.', 'Operational database.', 'Relational database.']
754296
['2.1 Use Prepared Statement. ... ', '2.2 Use Connection Pool. ... ', '2.3 Disable Auto Commit Mode. ... ', '2.4 Use JDBC Batch Statements. ... ', '2.5 Accessing Result Set by Column Names. ... ', '2.6 Use Bind variables instead of String Concatenation.']
1340567
['Hidden Field.', 'Cookies.', 'Query String.', 'ViewData.', 'ViewBag.', 'TempData.']
1267464
Physical Joins: These are the joins that users don't use/write in their SQL queries. Instead these are implemented inside SQL Server engine as operators or algorithms to implement the Logical Joins. Their types are Nested Loop, Merge and Hash.
861995
['Oracle INNER JOIN (or sometimes called simple join)', 'Oracle LEFT OUTER JOIN (or sometimes called LEFT JOIN)', 'Oracle RIGHT OUTER JOIN (or sometimes called RIGHT JOIN)', 'Oracle FULL OUTER JOIN (or sometimes called FULL JOIN)']
515421
LEFT JOIN / LEFT OUTER JOIN : returns all rows from the left table, even if there are no matches in the right table. RIGHT JOIN / RIGHT OUTER JOIN : returns all rows from the right table, even if there are no matches in the left table.
893530
['Select Tools > Options > General.', 'Select one or both of the following options: Allow connections to multiple data sources (Query window) ... ', 'Click to open a new tab in the current Query window.', 'Click to open an additional data source.']