Useful tips for everyday
How can I stream from my Raspberry Pi? – Port forward your Raspberry Pi IP address. External Port: 9090 (Public IP port to reach your…
What is the skirt on a piston? A thin cylinder of material fitted at the bottom end of a piston. It serves to close the…
How much of your time do you spend learning? As a general rule of thumb, most professors suggest that college students spend about two hours…
What are Web services testing tools? Of these, here are the top 12 tools for web services testing: SoapUI. TestingWhiz. SOAPSonar. SOAtest. TestMaker. Postman. vRest.…
How do you group data together? To group rows or columns: Select the rows or columns you want to group. In this example, we’ll select…
Do you put www in front of a web address? It’s actually not necessary to use WWW in URLs. It exists for just one purpose…
Will ORDER BY affect performance? ORDER BY on large tables can be real performance disaster , try to apply the ORDER BY clause on smallest…
How do you count the number of times a number appears in Google sheets? The COUNTIF function in Google Sheets is used to count the…
How do I fix error 550 in Gmail? How do I fix a 550 error? Check for email address typos. Check whether the email IP…
How to define sub sites in WordPress Multisite? Each options define sub site in your WordPress multisite. Check the [prefix]_6_options, site url is blog.maomaochia.com. From…