19771 questions
How do I use CHAR and VARCHAR differently in MySQL 5.7?I understood the following, but is it okay to put fixed length strings in VARCHAR and all VARCHAR?CHAR is a fixed length, so it stores a fixed le...
We are building a development environment with Visual Studio Code IDE and writing boot loaders to the wall.Each version has installed and downloaded the following:VS Code: 1.73.1Spresense VSCode IDE: ...
I'm creating a GUI that does a lot of things with PowerShell.Because there are a number of processes that require associative arrays, the function for creating associative arrays is once sandwiched an...
I'm studying about React.There is something I do not understand about the control and non-control components of React.How does a component with React determine whether it is controlled or not?Looking ...
I have a question about the following article:Computer Architecture Story (139) Direct Map Cache and Its Notes|TECH+ (Tech Plus) The sixth paragraph from the end of the page above contains the followi...
I would like you to automatically enter the person who executed this script in the vertxt='; section. What should I do from here?We have removed some of the var url parts for confidentiality.function ...
Developed by arduino IDE.I'm looking at the sketch example LteScanNetworks.ino.At the earliest, it takes about 10 seconds to connect and attach succeeded, but If it is long, it will not connect for mo...
When running SQL statements directly, the Cookbook says:What does this 'assoc' mean?$sql='select * from Users';$results=$connection->execute($sql)->fetchAll('assoc');
I want to create a condition that matches the same word repeatedly.Example) @Apple@Tangerine@Banana@Apple@VineIf there is a string like this, how should I write the condition that it matches if there ...
Currently, I am trying to play the playlist in the PresenseArduino tutorial on the following site on the Presense.https://developer.sony.com/develop/spresense/docs/arduino_tutorials_ja.htmlAfter follo...
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