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It's all about Data
A technical blog from Business Intelligence/Data Warehouse expert.
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...
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...
Learn Teradata
BTEQ Why it is Called BTEQ? Why is BTEQ available on every Teradata system ever built? Because the Batch Teradata Query (BTEQ) tool was the original way that SQL was submitted to Teradata as a means of getting an answer set in a desired format. This is the utility that I...
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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...
VLDB : Data Refined - Data Warehousing, Business Intelligence, Analytics & Data Science - VLDB - Data Refined : Data Warehousing, Business Intelligence & Data Science
We are Teradata, Redshift, Snowflake, Synapse, Greenplum, BigQuery, Tableau and PowerBI specialists.
Teradata FAQ's
Attributes Required/Optional Description AppendErrorTable = ‘value’ O Optional attribute that specifies whether or not the Stream Operator will use the existing error table. Valid values are: • ‘No’ = The Stream operator will not use the existing error table (default). • ‘Yes’ = The Stream operator will use the existing...
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Teradata Query Performance Tuning Blog | DWHPro
The DWHPro Teradata Query Performance Tuning Blog helps thousands of visitors every month to become experts in Teradata and data warehouse design and operations.
Teradata DBA
Why DIP or DIPPATCH did not complete or hung? Problem Why DIP or DIPPATCH did not complete or hung? Environment/Conditions/Configuration TDBMS 14.10.07.03 Cause Blocking / leftover HUT locks Solution Clear leftover HUT locks: 1) Logon to database as DBC ...
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Teradata Help
Wednesday, January 23, 2013 Packdisk in Teradata PACKDISK It is one of the last resorting options available to DBA's when the system runs out of Cylinders.Packdisk helps to pack up cylinders in AMP making space for more data. We need to note that PACKDISK is an expensive operation on the...
Teradata, PySpark and other data warehousing technologies
Teradata: Teradata Setup on Mac Teradata Architecture Teradata Primary Index(PI) Teradata Spaces Teradata Table Types Teradata NoPI Tables Teradata Table Properties Teradata Datatypes Teradata Partitioned PI Teradata Secondary Index Teradata Join Strategies Teradata Join Index Teradata Hash Index Teradata Locks Teradata Compression(MVC) Teradata String Functions Teradata String Functions Part 2...