This documentation is for WSO2 Enterprise Integrator version 6.4.0 . View documentation for the latest release in the 6.x.x family and the latest release in the 7.x.x family.

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In this example, when a message is received by a proxy service with a DBLookup mediator configuration, it opens a connection to the database and executes the SQL query. The SQL query uses ? character for attributes that will be filled at runtime. The parameters define how to calculate the value of those attributes at runtime. In this sample, the DBLookup Mediator has been used to extract  the id of the company from the company database using the symbol which is evaluated using an XPath against the SOAP envelope.

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Excerpt
hiddentrue

Description of the DBLookup Mediator in WSO2 ESB.