Macro teradata
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A macro is a group of one or more SQL statements that are given a name and executed with a simple command. Macros ensure multiple SQL steps are not forgotten as the macro remembers them. When a macro contains multiple commands, Teradata treats them as a single transaction so either all the commands succeed or none of them do. A sample macro is provided that selects data from different tables and conditions in one transaction.
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- When a macro is invoked, the macro processor replaces it with the body of statements defined in the macro, substituting any arguments for parameters.
- This expands the code without analyzing the meaning of the statements, in a way that is machine independent.
- The example shows how a macro definition declares parameters with & and how expansion substitutes arguments for parameters in the body when the macro is invoked.
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Disenar materiales
This document provides guidelines for coding ActionScript applications, including:
1) Code should be organized and commented clearly with consistent naming conventions.
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3. Creating an unbound combo box to provide search capabilities on a form without binding the combo box to any data. The combo box allows selecting a value to search for and populate related fields.
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