How can I see index in Teradata?

How can I see index in Teradata?

To find the join indexes that are defined on your table, run the following query:

1. SELECT * FROM dbc. indices.
2. WHERE indextype=’J’
3. AND databasename=’your_database_name’
4. AND tablename=’your_table_name’
5. ORDER BY indexname,columnposition;

What is view view structure in Teradata?

In my Teradata SQL Assistant Client, I can right-click a table and select Show Definition, this will display the column types and how they are defined.

How do I view an index in SQL?

To view indexes:

1. In the Connections navigator in SQL Developer, navigate to the Indexes node for the schema that includes the index you want to view. If the index is in your own schema, navigate to the Indexes node in your schema.
2. Open the Indexes node.
3. Click the name of the index you want to view.

Where is nopi table in Teradata?

The Teradata tablekind for NOPI tables is ‘O’. With the following SQL statement, we can find all NOPI tables in our system: SELECT * FROM DBC.

How do I see partitioned tables in Teradata?

How to find PPI (Partition Primary Index) tables in Teradata

1. WHERE indextype = ‘Q’
2. AND databasename=”;
3. SEL * FROM dbc.indexconstraints.
4. WHERE constraintType=’Q’
5. AND databasename=”;

What is index in a database?

An index is a database structure that you can use to improve the performance of database activity. A database table can have one or more indexes associated with it. An index is defined by a field expression that you specify when you create the index. Typically, the field expression is a single field name, like EMP_ID.

What are views in a database?

In a database, a view is the result set of a stored query on the data, which the database users can query just as they would in a persistent database collection object.

How do you find the definition of view?

To get the information of a view, you use the system catalog sys.sql_module and the OBJECT_ID() function:

1. SELECT definition, uses_ansi_nulls, uses_quoted_identifier, is_schema_bound FROM sys.sql_modules WHERE object_id = object_id( ‘sales.daily_sales’ );
2. EXEC sp_helptext ‘sales.product_catalog’ ;

How do you view table definition?

Using SQL Server Management Studio

1. In Object Explorer, select the table for which you want to show properties.
2. Right-click the table and choose Properties from the shortcut menu. For more information, see Table Properties – SSMS.

What is index view in SQL Server?

An indexed view has a unique clustered index. The unique clustered index is stored in SQL Server and updated like any other clustered index. An indexed view is more significant compared to standard views that involve complex processing of large numbers of rows, such as aggregating lots of data, or joining many rows.

What is a view in Teradata?

Teradata – Views. Views are database objects that are built by the query. Views can be built using a single table or multiple tables by way of join. Their definition is stored permanently in data dictionary but they don’t store copy of the data. Data for the view is built dynamically. A view may contain a subset of rows of the table or a subset…

How to get the table definition in Teradata?

Some time we want to check the table definition such as number of columns ,data type of the column,primary key ,unique constraints and so on. In that case, SHOW table helps to get the table definition in Teradata

What is Teradata in DBMS?

Teradata – Views – Views are database objects that are built by the query. Views can be built using a single table or multiple tables by way of join. Their definition is stored pe

What is the difference between a view and a table?

Views can be built using a single table or multiple tables by way of join. Their definition is stored permanently in data dictionary but they don’t store copy of the data. Data for the view is built dynamically. A view may contain a subset of rows of the table or a subset of columns of the table.