How To Change The Datatype Of A Column In Teradata

how to change the datatype of a column in teradata

How to Transpose Row to Column in Teradata Tech
Find column type using built in function!!! Did you know that datatype of column could be found using a built in function called "TYPE" . Till I came across this function, I used to follow the ancient method of digging into Data Dictionaries(dbc.columns) to find the type of given column.... Tags for Length of data types in Teradata. Datatype lengths in Teradata; teradata maximum varchar length; teradata varchar max; Teradata VARCHAR Max Size

how to change the datatype of a column in teradata

Data Types in Teradata SQL legendu.net

HELP COLUMN mytable.*; resolves views and returns the actual datatypes. The description of the two character ColumnType can be found in the Data Dictionary manual...
Tags for RENAME a column in Teradata. how to rename a column in teradata table; teradata alter column name; renaming a column in teradata; change column name in teradata

how to change the datatype of a column in teradata

Column compress values from statistics Teradata Downloads
1. add a new column, populate it, drop the old column and rename the new column to old name. For example if you have a table T1 with column C1, data type integer, it would go like this: For example if you have a table T1 with column C1, data type integer, it would go like this: how to download purchased send personally 14/08/2012 · Hi All,I need an SQL Query in TD to modify a column datatype length.something like we do in oracle(say if existing length is varchar(10),i need it to be changed to varchar(20))alter table xxx modify emp_name varchar(20)Thanks for your help,Kumar.. How to clean thermostat heater

How To Change The Datatype Of A Column In Teradata

How to change in mysql datatype float dot to comma?

  • Dates Times and Timestamps in Teradata (thru TD12)
  • Data Types in Teradata SQL legendu.net
  • Teradata SQL Teradata Compression Considerations
  • sql Alter Column type in Teradata - Stack Overflow

How To Change The Datatype Of A Column In Teradata

A column with a very high concentration on only a few values is a more promising candidate for compression than a column whose millions of different values spread evenly. We can apply a standard measure from the field of market concentration for our purpose: the Herfindahl-Index (HI). The closer the value of a column is to 1 the more potential for compression.

  • 13 May 2018 Add to Favorites Report. Change column datatype or length in Teradata. To Modify the a column type, length or format, we use ADD function in Teradata
  • Situation: There is a requirement to change the datatype of primary index column . Solution: You could run a Show table command to get the exact DDL, then change datatype ( say for example char(8)) to datatype varchar(10) .
  • The Teradata Database "SQL Data Type and Literals" manual describes each type in detail. This sections shows how the Teradata Database Numeric data types map to …
  • My other thought is to customize the XDB (which I already have quite a bit given we are on Teradata v15) to put a condition to change the DDL if the data type is a date, but I cannot seem to get the syntax right.

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