How to count the number of lines in a HDFS file?
WC command wc(word count) command is used in Linux/Unix to find out the number of lines,word count,byte and character count
Continue readingAdd new column to a table using alter table statement in Teradata
Alter table in Teradata: Alter table statement is used to add new columns to the existing table in Teradata. It
Continue readingHow to run one or more hive queries in a file using hive -f command
Hive -f command The Hive -f command is used to execute one or more hive queries from a file in
Continue readingHow to check if directory exists or not using shell script
In some cases, we wants to check whether the directory is exists or not using shell script.If the directory exists,
Continue readingHow to run a hive query from the command line using hive -e command
Hive -e command The Hive -e command is used to run the hive query in batch mode.Instead of enter into
Continue readingGet the create table statement for an existing Hive table using Show create table
The SHOW statement is a flexible way to get the information about existing objects in Hive. One of the Show
Continue readingHow to split a string by new line character in Java
String.split( ) in Java The string split() method breaks a given string around matches of the given regular expression. This
Continue readingHow to kill a process which is using port 8080 in windows
If we try to run the two different processes using the same port 8080, we will receive the error message
Continue reading
Add or modify the primary index of the table in Teradata using alter table query
Initially the table might be created without Primary index or Unique primary index. Later we wants to add the primary
Continue readingHow to find the size of the HDFS file
Size of the HDFS file in Hadoop File system Some time we will check the size of the HDFS file
Continue reading