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Instr function in Hive with examples

Posted on 11th December 202114th May 2022 by RevisitClass

Hive instr function Instr is a string function which returns the position of the first occurrence of substring in the

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Hadoop
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How to access a Hive table using Pyspark?

Posted on 15th November 20219th April 2022 by RevisitClass

Pyspark Apache Spark is an in-memory data processing framework written in Scala language. It process the data 100 times faster

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Hadoop, Spark
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Left join in Oracle with examples

Posted on 15th November 202115th November 2021 by RevisitClass

LEFT JOIN in Oracle A Join statement is used to combine data or rows from two or more tables based

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Oracle
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How to create a database at specific location in Hive?

Posted on 7th November 202114th May 2022 by RevisitClass

Create database in Hive The database is an organised collection of tables.Hive has the default database with the name as

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Hadoop
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How to connect Hive using JDBC connection?

Posted on 31st October 202114th May 2022 by RevisitClass

Hive JDBC Hive allows the applications to connect to it using the JDBC driver. JDBC driver uses Thrift to communicate

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Hadoop
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How to copy Docker image from one machine to another?

Posted on 16th October 202116th October 2021 by RevisitClass

Docker image A Docker image is an executable package that includes everything needed to run a container: the code, a

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DevOps
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How to create a external table in Hive?

Posted on 12th September 202114th May 2022 by RevisitClass

External Table in Hive When we create the table in Hive, we can define the type of a table. As

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Hadoop
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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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