Postgresql Top 10 Rows. In the case of a join query the rows locked are those that contribute to returned join rows. If you set logmindurationstatement in postgresqlconf to 5000 postgresql will consider queries which take longer than 5 seconds to be slow queries and send them to the logfile.
Order by score desc. Listed below are examples of sql select queries using the limit and offset syntax. In this blog we have provided the most frequently asked postgresql interview questions by the top companies.
Listed below are examples of sql select queries using the limit and offset syntax.
While working on a project i got a requirement to query a specific type of data from a postgresql table. Monitoring slow postgres queries with postgres. In version 84 and above you can use the standard sql2008 and fetch first like this. Fetch first 10 rows only.