They are totally different. WM_CLOSE is sent to the window when it is being closed – when its “X” button is clicked, or “Close” is chosen from the window’s menu, or Alt-F4 is pressed while the window has focus, etc. If you catch this message, this is your decision how to treat it – ignore … Read more
It is not java, but may be useful ./bin/kafka-run-class.sh kafka.tools.GetOffsetShell \ –broker-list <broker>:<port> \ –topic <topic-name> \ | awk -F “:” ‘{sum += $3} END {print sum}’
TEXT and BLOB may by stored off the table with the table just having a pointer to the location of the actual storage. Where it is stored depends on lots of things like data size, columns size, row_format, and MySQL version. VARCHAR is stored inline with the table. VARCHAR is faster when the size is … Read more