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1.Case Conversion Functions: a. UPPER: Converts all characters in a string to uppercase. Example: SELECT UPPER(‘Hello World’); Output:` HELLO WORLD` b. LOWER: Converts all characters in a string to lowercase. Example: SELECT LOWER(‘Hello World’); Output: hello world c. INITCAP: Converts the first letter of each word in a string to uppercase. Example: SELECT INITCAP(‘hello world’); …

 Section 9:91. String Manipulation and Case conversion and Length Read More »

To validate functions in Hive, you can use the DESCRIBE FUNCTION statement. The DESCRIBE FUNCTION statement provides information about a specific function in Hive, including its syntax, parameters, and return type. You can also use the SHOW FUNCTIONS statement to list all the available functions in Hive.  SHOW FUNCTIONS; This output shows a list of …

Section 9:90. Apache Hive – Overview of Functions Read More »

To validate functions in Hive, you can use the DESCRIBE FUNCTION statement. The DESCRIBE FUNCTION statement provides information about a specific function in Hive, including its syntax, parameters, and return type. You can also use the SHOW FUNCTIONS statement to list all the available functions in Hive.  SHOW FUNCTIONS; This output shows a list of …

Section 9:90. Apache Hive – Overview of Functions Read More »

Apache Hive is a data warehouse system for Hadoop that allows users to query and analyze large datasets stored in Hadoop Distributed File System (HDFS). Hive provides a variety of built-in functions that allow users to perform various data manipulation tasks, such as filtering, aggregation, and transformation. Here’s an overview of the different types of …

Section 9:89. Apache Hive – Overview of Functions Read More »

To update and delete data in Hive, you can use the UPDATE and DELETE statements. Here’s how you can use them: Updating Data: To update data in Hive, you can use the UPDATE statement followed by the name of the table and the new values you want to update. Here’s an example: Deleting Data: To …

Section 8:88. Updating and Deleting the data in Hive Bucketed Tables  Read More »

 Section 8:88. Updating and Deleting the data in Hive Bucketed Tables  To update and delete data in Hive, you can use the UPDATE and DELETE statements. Here’s how you can use them: Updating Data: To update data in Hive, you can use the UPDATE statement followed by the name of the table and the new …

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