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How to merge the table cells in HTML?

Posted on 5th September 202114th May 2022 by RevisitClass

HTML table The <table> tag is defines the table in HTML. In that table, <thead> tag is used to define

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Web Technology
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Regexp_substr function in Teradata with examples

Posted on 14th August 20215th February 2022 by RevisitClass

Regexp_substr function in Teradata Teradata supports substring function to extract a portion of the string. But It doesn’t allow regular

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Teradata
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How to execute HiveQL queries using Shell script?

Posted on 25th July 202114th May 2022 by RevisitClass

Introduction Shell script can be used to run the Hive queries in batch mode. It will handle the input values/arguments

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Hadoop
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How to create hourly partitions in Hive table

Posted on 18th July 202114th May 2022 by RevisitClass

Hourly partitions in Hive table When we have large quantities of data, we look for partition column to improve the

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Hadoop
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If condition in Hive with examples

Posted on 20th June 202114th May 2022 by RevisitClass

If condition/statement in Hive Hive supports many conditional functions such as If, isnull, isnotnull, nvl, nullif, COALESCE and CASE. The

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Hadoop
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Sum function with Case expression in Hive

Posted on 6th June 202114th May 2022 by RevisitClass

Sum() function in Hive Sum is one of the Aggregate function that returns the sum of the values of the

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Hadoop
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How to find the unused tables in Teradata?

Posted on 30th May 202114th May 2022 by RevisitClass

Unused tables in Teradata In general, DBA team in the Organization allocate limited amount of Teradata space for each user(individual/batch

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Teradata
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How to get the HDFS file size using WebHDFS?

Posted on 16th May 202113th February 2022 by RevisitClass

WebHDFS WebHDFS is a protocol which is based on an industry-standard RESTful mechanism. It provides the same functionality as HDFS,

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Hadoop
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Find list of databases/tables with specific pattern in Hive

Posted on 9th May 202114th May 2022 by RevisitClass

Show databases like query in Hive Show databases or Show schemas statement is lists all the database names in Hive

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Hadoop
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Length function in Hive with examples

Posted on 25th April 20216th December 2022 by RevisitClass

Length function in Hive The length function returns the length of a specified string. In other words, it gives the

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Hadoop
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