Hive documented about setting variables in hiveconf https://cwiki.apache.org/confluence/display/Hive/LanguageManual+VariableSubstitution
I know there is also a way of passing parameters using ${parameter}(not hiveconf), e.g.
select * from table_one where variable = ${parameter}
And then the hive editor would prompt you to enter the value for parameter when you submit the query.
I can't find where Apache hadoop documents this way of passing parameters. Is this way of passing parameters inherent in hive or oozie? If it is oozie why can it be used in the hive editor?
This is a feature of Hue. There is a reference to this feature in Cloudera documentation, at least for older versions. For example, the Hive Query Editor User Guide describes it.
PARAMETERIZATION Indicate that a dialog box should display to enter parameter values when a query containing the string $parametername is executed. Enabled by default.
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