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How do I see columns in a Teradata table?
- select columnname from dbc. columns.
- where tablename =’tbl’
- and databasename = ‘database’
How can I see table details 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.
Teradata Create Table example – SET/Multiset/CTAS
Images related to the topicTeradata Create Table example – SET/Multiset/CTAS
How do I get column names in Teradata?
You can use “SHOW VIEW VIEW_NAME” or “HELP COLUMN VIEW_NAME. *” to get all column names and datatype in the view.
How can I get column names and datatypes of a table in Teradata?
You can use “SHOW VIEW VIEW_NAME” or “HELP COLUMN VIEW_NAME. *” to get all column names and datatype in the view.
How do I view tables in Teradata SQL Assistant?
- Select Tools > List Tables.
- Note: Wildcard characters only function when using an ODBC connection. “%” Matches zero or more characters. Note: This field does not apply to Microsoft Access databases.
How do I select columns in Teradata?
Column Selection Methods
This is done by first highlighting one or more columns with left-mouse clicks, holding down the control or shift key to highlight multiple columns, and then holding down the left-mouse button while the mouse is dragged to the desired window and dropped by releasing the left-mouse button.
What is DBC table Teradata?
Teradata data dictionary tables are metadata tables present in the DBC database. It can be used for variety of things such as checking table size, query bottleneck and database size etc. Dbc. Columns : Column informatiom of tables, views, join index & hash index etc.
Where is DDL of table in Teradata?
Now, there are two ways to get the DDL using the table name. )UNIQUE PRIMARY INDEX(ID); CREATE TABLE TESTDB. DDLExample ( ID INT, NAME VARCHAR(50), DOB DATE )UNIQUE PRIMARY INDEX(ID);
PIVOT – Preselecting Columns in SQL
Images related to the topicPIVOT – Preselecting Columns in SQL
What is DBC in Teradata?
The DBC/1012 Data Base Computer was introduced by Teradata Corporation in 1984, as a back-end data base management system for mainframe computers.
How many columns are there in Teradata?
This limit includes 2,048 data table columns plus 13 error table columns.
Where is the base table of a view in Teradata?
- show select from myview returns DDL of all objects accessed by that Select. – dnoeth. …
- Thanks @dnoeth! show select * from myview works. …
- If QueryLog is enabled on object level (to save space using NO COLUMNS option) it logs table/view info in dbc.QryLogObjectsV.ObjectType .
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 SQL Assistant?
Teradata SQL Assistant/Web Edition is a Web-based query tool that enables you to compose a query, submit it to the Teradata Database and view the results from a Web browser. Then you can save the data on your PC for analysis.
What is SEL Teradata?
SEL is simply short for SELECT (legacy syntax). SEL(1/0) simply returns a division by zero error. In your Create Table the data types are based on the literals -> SMALLINT, VARCHAR(16) UNICODE, VARCHAR(6). Your 2nd insert will silently truncate the strings if it’s run in a Teradata session, an ANSI session will fail.
What are the different types of tables in Teradata?
- Derived Table.
- Volatile Table.
- Global Temporary Table.
Creating Tables in SQL
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How can I tell when a table was last updated in Teradata?
To find the time the table last was updated, you can try to parse query log table. For example, let your table name is TNAME and it is located in schema SNAME. Show activity on this post.
How do I get a list of tables in a database?
- Show all tables owned by the current user: SELECT table_name FROM user_tables;
- Show all tables in the current database: SELECT table_name FROM dba_tables;
- Show all tables that are accessible by the current user:
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