Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...
Aggregate functions help turn large datasets into simple summaries used across many fields. GROUP BY and HAVING allow structured grouping and filtering of data for clearer reports. Functions like ...
Tracing of basic set of events (Batch/RPC/SP:Stmt Starting/Completed, Audit login/logout, User error messages, Blocked Process report) and columns (Event Class, Text ...
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