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- How to delete all files and folders in a directory?
Using C#, how can I delete all files and folders from a directory, but still keep the root directory?
- How Stuff and For Xml Path work in SQL Server? - Stack Overflow
And FOR XML PATH('') simply converts column data into (,aaa,bbb,ccc,ddd,eee) string but in PATH we are passing '' so it will not create a XML tag And at the end we have grouped records using ID column
- loops - How to iterate over a JavaScript object? - Stack Overflow
Bear in mind that object properties are not stored in order When you iterate over an object there is no guarantee to the order in which they will appear
- ssl - How to fix the java. security. cert. CertificateException: No . . .
Extract the cert from the server, e g openssl s_client -showcerts -connect AAA BBB CCC DDD:9443 > certs txt This will extract certs in PEM format Convert the cert into DER format as this is what keytool expects, e g openssl x509 -in certs txt -out certs der -outform DER Now you want to import this cert into the system default 'cacert' file
- How to select unique records by SQL - Stack Overflow
ccc |300| 3| 10| 3| ddd |400| 7| 7| 1| * Option 3: Subquery Using a subquery, you can first identify the duplicate rows to ignore, and then filter them out in the outer query with the WHERE NOT IN (subquery) construct: ** Find the higher id values of duplicates, distinct only added for clarity * SELECT distinct d2 id FROM dupes d1
- CSS selector for first element with class - Stack Overflow
Learn how to use CSS selectors to target the first element with a specific class in your HTML code
- javascript - How to display file name for custom styled input file . . .
Everything is working fine, but I’d like to display the selected file name How is this possible using CSS or jQuery?
- r - Replace specific characters within strings - Stack Overflow
I would like to remove specific characters from strings within a vector, similar to the Find and Replace feature in Excel Here are the data I start with: group lt;- data frame(c("12357e", "125
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