Leaaion 46 : Subquery Subquery Subquery is a query whithin in a query. It is also called as Inner query or Nested query. A subquery is usually added in the WHERE clause of the sql statement. Usually, a subquery is used when we know how to search for a value using a SELECT statement, but...
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Teradata Study Guide
Journals August 02, 2011 Permanent Journal The purpose of a permanent journal is to maintain a sequential history of all changes made to the rows of one or more tables. Permanent journals help protect user data when users commit, uncommit or abort transactions. A permanent journal can capture a snapshot...
Teradata
Teradata Express for VMware (TDE-V) is a free, fully operational Teradata VM with up to one terabyte of storage. Imagine being able to install a fully operational Teradata database on your PC and be running queries in five minutes, easy as 1-2-3. After installing VMware Server/Player and downloading your choice of...
Teradata Interview Questions
Teradata Locks TERADATA LOCKS Locking in Teradata is automatic and cannot be turned off for normal tables. There are four types of locks that are used and they are: Types of Lock EXCLUSIVE WRITE READ ACCESS EXCLUSIVE The resource is temporarily owned. Not available to users until the lock is...
Data Analysis Example
Wednesday, 22 November 2017 Python Code for Execute Script to Accept Attributes and do custom action """ sample record; Source System,Source table,Element (column) name,From position,To Position,Column Position Genelco,XCISACT1,GROUP-NUMBER,Integer,1,20,1 Genelco,XCISACT1,ACCOUNT-NUMBER,Integer21,25,2 Genelco,XCISACT1,DUMMY 1,Varchar2,26,35,3 """ import json import collections import java.io from org.apache.commons.io import IOUtils from java.nio.charset import StandardCharsets from org.apache.nifi.processor.io import StreamCallback...
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TeraData Tech – Learn Teradata the easy way …
Collecting Stats on Table Level or Column Level ? collect stats, collect stats on table level, collect stats teradata, collect stats on column level View full post Interview Questions : SET 2 teradata interview questions, interview View full post Recovery Journal Recovery Journal in teradata, transient journal, down amp recovery...
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