Netezza

Netezza System Tables and Views

There are lot of Netezza system tables and views views available. You can get the more information about the users, tables, synonyms etc. Read: Netezza data types and length restrictions Netezza Query History details using nz_query_history Table Netezza System Tables and Views Below are the list of some commonly used system tables and views: View Table Description _v_sys_columns Return a list of all columns of table available in database. This is very important system view that can be used to search columns. _v_aggregate _t_aggregate Returns a list of all defined…

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September 4, 2016
Netezza

Netezza Sequence and how to Create/Use it

A Netezza sequence is named objects in an individual database in Netezza, that can provide the unique value when get next value method. You can use sequence to generate unique numbers that can be used as surrogate key values for primary key values. Netezza Sequence Overview A sequence value is an integer that you can use wherever you would use numeric values. Netezza supports user sequences for the four integer types: byteint, smallint, integer, and bigint. You can even create a sequence with an initial value, an increment, a minimum and a maximum value.…

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July 7, 2016