![]() ![]() You can add any number of piped elements. The pipe (|) character separates commands, so the output of the first command is the input of the next.The query starts with the table name SecurityEvent, which defines the scope of the query.This is a common way to take a glance at a table and understand its structure and content. The preceding query returns 10 results from the SecurityEvent table, in no specific order. Identify a table that you're interested in, and then take a look at a bit of data: SecurityEvent All tables and columns are shown on the schema pane in Log Analytics in the Analytics portal. Table-based queriesĪzure Monitor organizes log data in tables, each composed of multiple columns. When you use names of tables or columns in a query, be sure to use the correct case, as shown on the schema pane. Language keywords are usually written in lowercase. You can copy the code or use my NuGet library.The Kusto query language, which is used by Azure Monitor, is case-sensitive. These two helper methods show how to do this and how to convert the ticks string back to DateTimeOffset. Before using it as a PrimaryKey or RowKey we do need to convert this to a string while making sure all future values have the same length with leading zeroes when necessary. One way to ensure this is by converting the current DateTime to a ever-decreasing number of ticks by subtracting it from the DateTime.Max value. By making sure this combination comes first in alphabetical order for every new entry makes it easy to just ask for the very first row. However, we can use the fact that all rows in the Azure Table Storage are sorted by PartitionKey + RowKey to our advantage. This could be narrowed down by for example knowing on which day a record was added and filtering accordingly, but we’d probably still get multiple rows to check manually for the newest one. While there’s of course the Timestamp column that could be used to indetify the desired row, we would need to query the whole table to find the youngest date. ![]() ![]() Recently I had the requirement of retreiving the newest entry in an Azure Table Storage table. ![]()
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