How do I check access rights in Teradata?
Checking Rights in Teradata
- SELECT *
- FROM dbc. allrights.
- WHERE username=’user-id’
- AND databasename=’database-name’
What is PDE in Teradata?
Parallel Database Extensions (PDE) is a software interface layer that lies between the operating system and Teradata Database. PDE supports the parallelism across system nodes that contributes to Teradata Database speed and linear scalability.
What is Teradata DBC?
The DBC/1012 Data Base Computer was introduced by Teradata Corporation in 1984, as a back-end data base management system for mainframe computers. The DBC/1012 was designed to manage databases up to one terabyte (1,000,000,000,000 characters) in size; “1012” in the name refers to “10 to the power of 12”.
What is schema in Teradata?
Teradata PT requires that the job script describe the structure of the data to be processed, that is the columns in table rows or fields in file records. This description is called the schema.
What is Teradata view?
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.
What is Teradata used for?
Teradata is an RDBMS that is produced by Teradata Corp. And it is used to manage large data warehousing operations. Teradata Corporation is a provider of database and analytics-related software, products, and services. It accepts the number of requests from multiple client applications.
What is Teradata in mainframe?
Connectivity − Teradata can connect to Channel-attached systems such as Mainframe or Network-attached systems. Robust Utilities − Teradata provides robust utilities to import/export data from/to Teradata system such as FastLoad, MultiLoad, FastExport and TPT.
How do I access my Teradata database?
Use the following procedure to connect to a data source.
- From the main window, click File > Connect.
- Select the ODBC data source from the list, and click OK. The Teradata Database Connect dialog box appears.
- DBC Name or Address – The TDPid of the Teradata Database.
What is role Teradata?
Roles define privileges on database objects. A user who is assigned a role can access all the objects that the role has privileges to. Roles simplify management of user privileges. Instead of inserting one row per user per privilege on a database object, Teradata Database inserts one row per role per privilege in DBC.
What is the key capability by the Teradata PDE?
Which is a key capability provided by the Teradata Parallel Database Extensions (PDE)? Options are : It monitors system performance. It returns answer sets to the client.
How do I get table metadata in Teradata?
SELECT databasename, tablename FROM dbc. allrolerights WHERE rolename = [‘Role_name’] AND tablename= [‘tablename/viewname’] GROUP BY 1,2 Order by 1,2; Dbc.
What are the types of access rights in Teradata?
Teradata distinguishes between these four types of access rights Implicit: The privileges of a user or database owning an object (“ownership privilege”) Explicit: The Privileges explicitly granted with the GRANT statement Inherited: The privileges inherited by being a role member Automatic: The privileges automatically granted by Teradata
What is creator privilege in Teradata?
Certain privileges are automatically granted when a user creates an object, such as users, databases, tables, views, etc. Automatic privileges are automatically granted by Teradata (“Creator Privilege”). If a table is created, the assigned privileges are delete, insert, update, select, etc.
Who is the creator of a Teradata object?
Teradata distinguishes between creators and owners of database objects. The creator is the user who executed the DDL statement to create an object. Thus, only one user can be the creator of an object. The owners of a database object are all databases and users which are above the object in the database hierarchy.