How to Describe Table in Teradata

Whenever the user executes any query Teradata creates different execution plans and chooses the best plan to execute the SQL query. Because it lets developers view data much as a business naturally uses data Pick is reputed to be easy to learn and use as well as cost-efficient.

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Specifies single datatype for a column.

. This information is used. Like if we have some more tables like department table and project table then how these tables would be related is defined here. This is the design of the database defined at the physical level of data abstraction.

The name of the table. Where the table will be created. These execution plans are based on the statistics collected on the tables used within the SQL query.

You have to define. This tells how the data will be stored in the storage device. The data can be stored in the form of file indices etc.

Pick is a data base management system DMS based on a business model of data and its organization and traditionally associated with minicomputer systems for small- to medium-size businesses. The information collected by the COLLECT STATISTIC method stores in the Data DictionaryDD tables. Example NOT NULL NOT CASE SPECIFIC UPPER CASE FORMAT etc.

Defines attributes for a column. Name of the column you want in the table.

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