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Java Connection Pooling Questions
1.What is save point?2.Which among the four drivers is pure Java driver?3.What is Connection Pooling ?4.How differ servlet from its peer Technology?5.What are the parameters used in Connection pooling?6.What are the Normalization Rules? Define the Normalization?9.What are batch updates.10.How many JDBC drivers are there ?
nuttyvarun
- Feb 21st, 2008
Connection pooling is a technique of creating and managing a pool of connections that are ready for use by any thread that needs them, and generally leads to more predictable resource usage under load...
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What is the difference between StringBuffer and StringBuilder class?
santhakumarchimata
- Mar 15th, 2011
StringBuilder is a feature of Java 5Methods in StringBuffer are Synchronized & thread safe.Methods in StringBuilder are not Synchronized & not thread safe.If you want faster access use StringBulder. If you want your string to be thread safe, use StringBuffer.
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What exactly happens when Class.forName(sun.jdbc.odbc.JdbcOdbcDriver) gets called
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Can we use Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") inside non static function?
gptnitesh
- Sep 11th, 2007
Ofcourse why not, you can use Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") inside non static function. But I will suggest you should use this inside static block. The reason is we put this in the static block is that we only have to load the driver once.
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What is Connection Pooling?
subrataadhyaroy
- Mar 11th, 2008
Connection pooling is the ability of re-use your connection to the Database. This means if you enable Connection pooling in the connection object, actually you enable the re-use of the connection to more than one user.
gptnitesh
- Sep 11th, 2007
Connection pooling is the process of managing the connections effectively and efficiently by optimizing the usage of database connections.The way the connection pooling works is,1. It initializes a po...
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Why we can not override static method?
Manjunath_7_89
- Mar 25th, 2016
Static methods cannot be overridden because method overriding only occurs in the context of dynamic (i.e. runtime) lookup of methods. Static methods (by their name) are looked up statically (i.e. at c...
Ramesh
- Feb 4th, 2016
If a subclass defines a class method with the same signature as a class method in the superclass, the method in the subclass hides the one in the superclass. You didn't override the method a(), because static methods are not inherited. If you had put @Override, you would have seen an error.
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What is connection pooling?
CareerBaba.in
- May 7th, 2014
Opening database connection is a time consuming operation. Connection pooling increases the performance of the applications by reusing the active database connections instead of create new connection ...
mani.sivapuram
- Feb 23rd, 2011
In the previous days database connections are maintained by database only for example oracle database is having 10 database connections are there.Consider at the same time 10 clients are asked for a p...
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Can you declare the override method static while the original method is non-static?
No, you cannot, the signature of the virtual method must remain the same, only the keyword virtual is changed to keyword override.
gptnitesh
- Sep 11th, 2007
No you cannot declare the override method static while original method is non-static, not even vice versa.
Rajesh Ravindran
- Sep 11th, 2007
No, Because the Overrirde method or Overriden method should have same access attribute, same return type, same argument etc. If it is not same it will throw compiler error.
