Saturday 22 February 2014

Compress Column in TERADATA

Can you compress a column which is already present in table using ALTER in Teradata?

No,   We cannot use ALTER command to compress the existing columns in the table.
A new table structure has to be created which includes the Compression values and data should be inserted into Compress column table.
Please note - ALTER can be used only to add new  columns with compression values to table.


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