Muhammad Gelbana

I needed to filter rows using timestamp columns but with extra in-deep conditions such as: - Looking up rows with the " lastRestart " column 2 minutes (or more) before now . `lastRestart` < (NOW() - INTERVAL 2 MINUTE) - Or instead of the literal value '2', you can reference a coloumn by it's name: `lastRestart` < (NOW() - INTERVAL `Frequency` MINUTE) - Comparing time fields with timestamps. Which means that you need to compare only hours, minutes and seconds with timestamp values\coloumns. start_timeofday <= CAST(NOW() AS TIME) -- start_timeofday is a time coloumn.

Here is a snippet to copy tables (possibly from one database to another): ipk is a schema, ipk_v2 as another schema. Here I'm trying to copy a table called " tclrequest " from ipk to ipk_v2 USE ipk_v2; CREATE TABLE `table11` LIKE `ipk`.`tclrequest`; -- A temp table   INSERT INTO tclrequest SELECT * FROM ipk.tclrequest; You'll need to delete the temp table when you are done.

I'm borrowing this idea from here . If you continue reading the post you'll find many innovative ideas in the comments but I just have a slight improvement to the original line of batch code: Linux for ip in $(seq 1 254); do ping -c 1 192.168.1.$ip>/dev/null; [ $? -eq 0 ] && echo "192.168.1.$ip UP" || : ; done You can speed things up by adding the  -W parameter to the ping command to decrease the timeout to 1 second instead of the default which is 3 seconds . for ip in $(seq 1 254); do ping -W 1 -c 1 192.168.1.$ip>/dev/null; [ $? -eq 0 ] && echo "192.168.1.$ip UP" || : ; done ...for windows for /L %I in (1,1,254) DO ping -w 30 -n 1 192.168.1.%I | find "bytes="