JDBC - What is metadata?

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JDBC | Question 38 of 137

What is metadata?

Total Answers and Comments: 5

Last Update: November 22, 2005 Asked by: chandu

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October 21, 2005 07:09:23

Aarohi

RE: What is metadata?

This is the Data Information that a Resultset has fetched.

For Example I had a resultset containig all the records from a table of 3 columns say CA CB CC.

Metadata will all the underlined info about the table and the columns that has been fetched.

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October 21, 2005 11:11:23

Kalyankumar

RE: What is metadata?

What is ResultSet Meta Data.

-Kalyan.

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October 22, 2005 05:51:27

Ranjith

RE: What is metadata?

Basically Metadata is data about data.

In context of JDBC there may be two types of metadata.

1. Describing information about the Resultset object. i.e if u have applied a query that fetches some result. this metadata describes information about how many columns have been fetched their names etc.

2. Second One describes about the database connection

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October 23, 2005 11:58:53

Mamatha

RE: What is metadata?

Meta Data- is information that describes about structure and properties of our data. When we define a table we specify each columns name type of data it holds and restrictions imposed (Constraints) and who owns it. This Information in JDBC Context is called MetaData.In JDBC we have two types of Meta Data(i) ResultSet MetaData(ii) DataBase MetaData(i) ResultSet MetaData is information about data contained in ResultSet(ii) DataBase MetaData is Data about Data

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November 14, 2005 02:17:03

pavani

RE: What is metadata?

A single application can have one or more connections with a single database or it can have connections with many different databases.A user can get information about a Connection object's database by invoking the Connection.getMetaData method. This method returns a DatabaseMetaData object that contains information about the database's tables the SQL grammar it supports its stored procedures the capabilities of this connection and so on.

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