This topic lists some frequently asked questions about the query and analysis feature of Simple Log Service. FAQ about log queryWhat do I do if no results are returned when I query a log?What can I do if the "The results are inaccurate" error occurs?How do I resolve common errors that may occur when I query and analyze logs?What are the differences between LogHub and LogSearch?How do I query logs by using fuzzy match?How do I query logs by using exact match?How do I use quotation marks in query statements?FAQ about the query and analysis of JSON logsConfigure a field index in log serviceHow do I modify the number of rows output by an SQL query statement?How do I query the source machines and log entries?How to precisely sort query logs by time?How do I download logs to a local device?How to search for keywords that contain spaces in logs?