DEDUPLICATOR OPERATOR CODE
If you use the DECODE function in an expression, then it is promoted to CASE where appropriate during code generation. Others: A list of available SQL clauses that are appropriate for the active expression type.īeginning in Oracle 9 i, the CASE function is recommended over the DECODE function because the CASE function generates both SQL and PL/SQL while DECODE is limited to SQL. The arithmetic operators available vary by the type of data flow operator that is active. Use these buttons to build an expression without typing. Use this field to type and edit expressions.Īrithmetic Operator Buttons: Below the Expression field are buttons for arithmetic operators. Transformations Tab: A list of predefined functions and procedures located in the public Oracle Predefined library, the public Oracle Custom library, and a private Oracle library.Įxpression Field: At the top of the right panel is the Expression field. In the left panel, the navigation tree displays two tabs: The Expression Builder contains the following parts:
Warehouse Builder removes the selection from the input group and removes the data flow connection between the source operator and the current operator. You can use the left arrow to remove groups or attributes from the input connections list. Use the right arrow button between the two panels to move your selections to the Mapped Attributes panel. If you want to select attributes from different groups, then you must first combine the groups with a Joiner or Set operator. Hold the Shift key down to select multiple groups or attributes. To search for a specific attribute or group by name, type the text in Search for and select Go. Select complete groups or individual attributes from the Available Attributes panel. To complete the Input Connections page for an operator: The Available Attributes panel displays a list of all the operators in the mapping. The attributes you select become mapped members in the input group. Use the Input Connections page to copy and map attributes into the operator. Whether you are using an operator wizard or the operator editor, you must complete the following pages for each operator: The operator editor displays the same content as the wizard except in a tab format rather than wizard pages. To start the operator editor, right-click the operator on the Mapping Editor and select Open Details.
Once you become proficient with defining an operator, you may prefer to disable the wizard and use the operator editor instead. Name and Address operator, see "Using the Name and Address Operator to Cleanse and Correct Name and Address Data" Match Merge operator, see "Using the Match Merge Operator to Eliminate Duplicate Source Records"
The following operators have wizards to assist you: To close an operator wizard, click Finish on any of the wizard pages. Use Next and Back to navigate through the wizard. And each wizard concludes with a summary page listing your selections. Each wizard begins with a welcome page that provides an overview of the steps you must perform. For operators that require you to make numerous design decisions, wizards guide you in defining the operator.
0 kommentar(er)
