what is metadata and it's use?
Answers were Sorted based on User's Feedback
Answer / anand
Meta data nothing but data about date.
For example,
22 - marks
Raju - name
96 - age
Hyd - address
In the above example we can say that marks,name,age and address called Meta data, because that data gives detail information about actual data.
<marks>22</marks>
<name>Raju</name>
<age>96</age>
<address>Hyd</address>
Tn the above one we can say that the tags like <marks>,<name>,<age>,<address> are called meta tags, because that tags gives details information about actual data.
In java we have two types of metadata.
i) ResultSetMetaData
ii) DatabaseMetaData
ResultSetMetaData is used to know the details of ResultSet object like no.of columns,names of the columns and datatypes of the column etc.
DatabaseMetaData is used to know the information about database server like version of the database server,name of the database server etc.
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / sowmya
metadata is nothing but data about data.
This data includes column-type,constraint-type etc.
It describes the whole structure of table data
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / harish
u can access information abt the database as a whole or abt
a particular query ResultSet.This section describes how
DatabaseMetaData and ResultSetMetaData objects are obtained
and queried.
Is This Answer Correct ? | 0 Yes | 0 No |
Explain the JDBC Architecture?
what is connection pooling?
How many types of JDBC drivers are there and what are they?
What are the sailent features of JDBC 2.0?
What is the meaning of “dirty read” in the database?
What is the difference between jdbc and odbc?
Does sql allow null values ?
Why can't I invoke the ResultSet methods afterLast and beforeFirst when the method next works?
When you will get error like ?No suitable driver??
What is the meaning of batch updates?
What is Connection Pooling ??? How we set up a particular connection within connection pooling ????
What should be done for auto generating primary key id in a table ?