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How do I find the size of a table in Teradata?

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How do I find the size of a table in Teradata?

Check table size across all AMPs in Teradata

  1. SELECT DATABASENAME, TABLENAME, CAST(SUM(CURRENTPERM) /1024/1024/1024 as DECIMAL (6,0)) as MaxPerm_GB.
  2. FROM DBC.TABLESIZE.
  3. WHERE DATABASENAME = ” AND TABLENAME = ‘
    ‘

    Where is space occupied by table in Teradata?

    You can measure the space used by the tables in bytes across databases. Syntax: SELECT tablename,sum(currentperm)/1024*1024 Bytes_usage. FROM dbc.

    How do I determine row size in Teradata?

    Determine how many BLOB, CLOB, or XML columns are in the table and record the number under Number of Columns on the Row Size Calculation Form, Page 1 of 2. Multiply that number by 40 to determine the total row size taken up by BLOB, CLOB, and XML object IDs (OIDs).

    What is CurrentPerm in Teradata?

    CURRENTPERM column in DBC. The total number of bytes(including table headers) currently allocated to existing data tables,index tables and sub tables,stored procedures,triggers and permanent journals residing in a particular database/user. This value is maintained on each AMP.

    What size is a table?

    Most rectangular tables are between 36″ and 40″ wide. A table that seats four should be about 48″ long. To seat four to six people, look for a table that is at least 60″ long. For six to eight guests, your table should be at least 78″ long.

    What is skew factor in Teradata?

    Skew factor is distribution of rows of a table among the. available no. of AMP’s. If your table has a chance of using unique primary index,it.

    How do you clear the spool space in Teradata?

    Solve The Teradata Spool Space Problem – Failure 2646 No more spool space

    1. Ensure up-to-date statistics.
    2. Choose a good Primary Index.
    3. Prevent “no more spool space” on system level.
    4. Release Spool Space as soon as possible.

    What size is a standard rectangle table?

    How can get query table size in SQL Server?

    Get size of tables in SQL Server

    1. USE {Database_Name}; GO.
    2. SELECT.
    3. (SUM(a. total_pages) – SUM(a. used_pages)) * 8 AS UnusedSpaceKB. FROM.
    4. LEFT OUTER JOIN sys. schemas s ON t. schema_id = s. schema_id. WHERE.
    5. AND i. object_id > 255. GROUP BY.
    6. t. Name, s. Name, p. Rows. ORDER BY.
    7. t. Name; GO.

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