Apache Derby – Having Clause
The HAVING Clause enables you to specify conditions that filter which group results appear in the results. The WHERE clause places conditions on the selected columns, whereas the HAVING clause…
WSDL – Element
The <binding> element provides specific details on how a portType operation will actually be transmitted over the wire. The bindings can be made available via multiple transports including HTTP GET, HTTP POST, or SOAP.The…
Apache Derby – Order By Clause
The ORDER BY clause is used to arrange the contents of the result set in the order it uses the keywords, ASC representing ascending order and DESC representing descending order.…
WSDL – Element
The <portType> element combines multiple message elements to form a complete one-way or round-trip operation. For example, a <portType> can combine one request and one response message into a single request/response operation. This is…
WSDL – Element
The <message> element describes the data being exchanged between the web service providers and the consumers. Each Web Service has two messages: input and output.The input describes the parameters for the web…
Apache Derby – GROUP BY Clause
The GROUP BY clause is used with SELECT statements. It is used to form subsets in case of identical data. Usually, this clause is followed by ORDER BY clause and…
WSDL – Element
A web service needs to define its inputs and outputs and how they are mapped into and out of the services. WSDL <types> element takes care of defining the data types that…
Apache Derby – Where Clause
The WHERE clause is used in the SELECT, DELETE or, UPDATE statements to specify the rows on which the operation needs to be carried out. Usually, this clause is followed…
WSDL – Element
The <definitions> element must be the root element of all WSDL documents. It defines the name of the web service. Here is the piece of code from the last chapter that uses…
Apache Derby – Delete Data
The DELETE statement is used to delete rows of a table. Just like the UPDATE statement, Apache Derby provides two types of Delete (syntax): searched delete and positioned delete. The searched delete statement deletes…
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