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Illegal mix of collations MySQL Error
...ly refuses to change from 'ucs2_bin' so even tried changing all the tables and the connection collation to 'usc2_bin' but I still get the error "SQL Error (1267): Illegal mix of collations (utf8_general_ci,IMPLICIT) and (ucs2_bin,IMPLICIT) for operation '='".
– bikeman868
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java.sql.SQLException: - ORA-01000: maximum open cursors exceeded
...e database than cursors on the DB. One case is where you have a connection and thread pool larger than the number of cursors on the database.
You have many developers or applications connected to the same DB instance (which will probably include many schemas) and together you are using too many conn...
What is the difference between encrypting and signing in asymmetric encryption?
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When encrypting, you use their public key to write a message and they use their private key to read it.
When signing, you use your private key to write message's signature, and they use your public key to check if it's really yours.
I want to use my private key to generate messages so...
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?
29 Answers
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Increase modal size for Twitter Bootstrap
...e it respond to the content I render there. I am using it to render a form and would prefer to deal with scrolling if required myself.
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What is the meaning of the term “free function” in C++?
...ion for boost::test, I came across the term "free function". What I understand is that a free function is any function that doesn't return anything (Its return type is void). But after reading further it seems that free functions also don't take any arguments. But I am not sure. These all are my ass...
Python “SyntaxError: Non-ASCII character '\xe2' in file”
I am writing some python code and I am receiving the error message as in the title, from searching this has to do with the character set.
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Using HeapDumpOnOutOfMemoryError parameter for heap dump for JBoss
...imilar to "Unable to create /tmp/java_pidpid.hprof: File exists" in your standard out. Be sure to move your dump file out of the dump path to clear the way for any future dump files; and make use of the <pid> placeholder in the file name to increase entropy in the file name.
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JUnit tests pass in Eclipse but fail in Maven Surefire
I have written some JUnit tests using JUnit 4 and spring-test libraries. When I run the tests inside Eclipse then run fine and pass. But when I run them using Maven (during the build process), they fail giving a spring related error. I am not sure what is causing the problem, JUnit, Surefire or Spri...
How to establish a connection pool in JDBC?
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If you need a standalone connection pool, my preference goes to C3P0 over DBCP (that I've mentioned in this previous answer), I just had too much problems with DBCP under heavy load. Using C3P0 is dead simple. From the documentation:
ComboP...