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Java - escape string to prevent SQL injection
...lace in java and am finding it very difficult to work with the the "replaceAll" string function. Ultimately I need a function that will convert any existing \ to \\ , any " to \" , any ' to \' , and any \n to \\n so that when the string is evaluated by MySQL SQL injections will be block...
How to change max_allowed_packet size
...ading files larger than approx 1MB I get an error Packets larger than max_allowed_packet are not allowed.
12 Answers
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How to list active / open connections in Oracle?
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Either you don't have permissions, or you didn't install the DBA views correctly.
– S.Lott
Jun 25 '09 at 10:24
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Is Java really slow?
...my opinion, this is the main reason Java still has a bad reputation, especially server-side. This makes the String problems exponentially worse. Some simple mistakes are common: objects are often used in place of primitives, reducing performance and increasing memory use. Many Java libraries (includ...
What is the best way to profile javascript execution? [closed]
...e building a lot of javascript code and you want to determine what are actually the bottlenecks in the code. At first I want to see profile stats of every javascript function and execution time. Next would be including DOM functions. This combined with actions that slows things down like operation o...
Count table rows
...t..." in the SQL, does it use $results->num_rows, or is there a way to call this result directly?
– Nosajimiki
Apr 24 '17 at 19:26
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Access Control Request Headers, is added to header in AJAX request with jQuery
...ctual request; note that the HTTP method is OPTIONS, not POST. It was actually the 'pre-flight' request that the browser makes to determine whether a cross-domain AJAX request should be allowed:
http://www.w3.org/TR/cors/
The Access-Control-Request-Headers header in the pre-flight request include...
scp or sftp copy multiple files with single command
...lders to multiple remote folders, these examples won't do the job, as they all will scp files to ~ or ./ only.
– aesede
Apr 28 '15 at 17:09
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How to do a newline in output
How do I make \n actually work in my output? At the moment it just writes it all in 1 long block. Thanks for any help
4 A...
What is a columnar database?
...an easy fashion).
How do they differ from relational databases?
They generally differ from traditional (row-oriented) databases with regards to ...
performance...
storage requirements ...
ease of modification of the schema ...
...in specific use cases of DBMSes.
In particular they offer advanta...