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Top Forums Shell Programming and Scripting Replace query by reading the file Post 303002059 by rohit_shinez on Thursday 17th of August 2017 03:24:23 AM
Old 08-17-2017
Replace query by reading the file

Hi Guys,

I am having below file which holds data like this
file.txt
Code:
name,id,flag
apple,1,Y
apple,2,N
mango,1,Y
mango,2,Y

I need to read the above file and frame a query like this
Code:
hive -s -e "create apple_view as select 1 from main_table;"
hive -s -e "create mango_view as select 1,2 from main_table;"

i need take the column id where the flag is Y so here its '1' for apple and 1,2 for mango
 

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EXECUTE(7)							   SQL Commands 							EXECUTE(7)

NAME
EXECUTE - execute a prepared query SYNOPSIS
EXECUTE plan_name [ (parameter [, ...] ) ] INPUTS plan_name The name of the prepared query to execute. parameter The actual value of a parameter to the prepared query. This must be an expression yielding a value of a type compatible with the data-type specified for this parameter position in the PREPARE statement that created the prepared query. DESCRIPTION
EXECUTE is used to execute a previously prepared query. Since prepared queries only exist for the duration of a session, the prepared query must have been created by a PREPARE statement executed earlier in the current session. If the PREPARE statement that created the query specified some parameters, a compatible set of parameters must be passed to the EXECUTE statement, or else an error is raised. Note that (unlike functions) prepared queries are not overloaded based on the type or number of their parameters: the name of a prepared query must be unique within a database session. For more information on the creation and usage of prepared queries, see PREPARE [prepare(7)]. COMPATIBILITY
SQL92 SQL92 includes an EXECUTE statement, but it is only for use in embedded SQL clients. The EXECUTE statement implemented by PostgreSQL also uses a somewhat different syntax. SQL - Language Statements 2002-11-22 EXECUTE(7)
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