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Qlik Exam QSDA2024 Topic 5 Question 10 Discussion
Topic #: 5
A data architect wants reflect a value of the variable in the script log for tracking purposes. The variable is defined as:
Which statement should be used to track the variable's value?
A)
B)
C)
D)
In Qlik Sense, the TRACE statement is used to print custom messages to the script execution log. To output the value of a variable, particularly one that is dynamically assigned, the correct syntax must be used to ensure that the variable's value is evaluated and displayed correctly.
The variable vMaxDate is defined with the LET statement, which means it is evaluated immediately, and its value is stored.
When using the TRACE statement, to output the value of vMaxDate, you need to ensure the variable's value is expanded before being printed. This is done using the $() expansion syntax.
The correct syntax is TRACE #### $(vMaxDate) ####; which evaluates the variable vMaxDate and inserts its value into the log output.
Key Qlik Sense Data Architect Reference:
Variable Expansion: In Qlik Sense scripting, $(variable_name) is used to expand and insert the value of the variable into expressions or statements. This is crucial when you want to output or use the value stored in a variable.
TRACE Statement: The TRACE command is used to write messages to the script log. It is commonly used for debugging purposes to track the flow of script execution or to verify the values of variables during script execution.
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