Merging the two output files on the shell level should not be considered the smartest approach as SQL has the means - and is designed to do exactly that - to do the merge immediately in a query. Try like (my SQL has become somewhat rusty, so there may be smarter queries):
Need to find only unique values for a given tag across the files:
For eg:
Test1:
<Tag1>aaa</Tag1>
<Tag2>bbb</Tag2>
<Tag3>ccc</Tag3>
Test2:
<Tag1>aaa</Tag1>
<Tag2>ddd</Tag2>
<Tag3>eee</Tag3>
Test3:
<Tag1>aaa</Tag1>
<Tag2>ddd</Tag2>
<Tag3>eee</Tag3>
Test4: (8 Replies)
Hi all,
I have got a problem while comparing 2 text files and the result should contains the unique values(Non repeatable).
For eg:
file1.txt
1
2
3
4
file2.txt
2
3
So after comaping the above 2 files I should get only 1 and 4 as the output. Pls help me out. (7 Replies)
Hi everyone,
I'm just wondering how could I using awk language merge two files by comparison of one their row.
I mean, I have one file like this:
file#1:
21/07/2009 11:45:00 100.0000000 27.2727280
21/07/2009 11:50:00 75.9856644 25.2492676
21/07/2009 11:55:00 51.9713287 23.2258072... (4 Replies)
- I have two files (File 1 and File 2) and the contents of the files are mentioned below.
- I am trying to compare the values of Column1 of File1 with Column1 of File2. If a match is found, print the corresponding value from Column2 of File1 in Column5 of File2.
- I tried to modify and use... (10 Replies)
Hi!
I need to merge two files when col1 (x:x:x) matching and adds second column from file1.txt.
# cat 1.txt
aaa;a12
bbb;b13
ccc;c33
ddd;d55
eee;e11
# cat 2.txt
bbb;b55;34444;d55
aaa;a15;35666;a44
I try with this awk and I get succesfully first column from 1.txt:
# awk -F";"... (2 Replies)
Request: grep to find given matching patern and return unique values, eliminate the duplicate values
I have to retrieve the unique folder on the below file contents like;
/app/oracle/build_lib/pkg320.0_20120927
/app/oracle/build_lib/pkg320.0_20121004_prof... (5 Replies)
Hi,
Please excuse for often requesting queries and making R&D, I am trying to work out a possibility where i have two files field separated by pipe and another file containing only one field where there is no matching columns, Could you please advise how to merge two files.
$more... (3 Replies)
Looking for a little help here.
I have 1000's of text files within a multiple folders.
YYYY/
/MM
/1000's Files
Eg.
2014/01/1000 files
2014/02/1237 files
2014/03/1400 files
There are folders for each year and each month, and within each monthly folder there are... (4 Replies)
Hi,
I am trying to merge two csv files based on matching criteria:
File description is as below :
Key_File :
000|ÇÞ|Key_HF|ÇÞ|Key_FName
001|ÇÞ|Key_11|ÇÞ|Sort_Key22|ÇÞ|Key_31
002|ÇÞ|Key_12|ÇÞ|Sort_Key23|ÇÞ|Key_32
003|ÇÞ|Key_13|ÇÞ|Sort_Key24|ÇÞ|Key_33
050|ÇÞ|Key_15|ÇÞ|Sort_Key25|ÇÞ|Key_34... (3 Replies)
Dear community, I am facing a problem and I kindly ask your help:
I have 4 different data sets consisted from 3 different types of array.
On each file, column 1 is chromosome position, column 2 is SNP id etc... Lets say I have the following (bim) datasets:
x2014:
1 rs3094315... (4 Replies)
Discussion started by: fondan
4 Replies
LEARN ABOUT DEBIAN
rdf::query::compiler::sql
RDF::Query::Compiler::SQL(3pm) User Contributed Perl Documentation RDF::Query::Compiler::SQL(3pm)NAME
RDF::Query::Compiler::SQL - Compile a SPARQL query directly to SQL.
VERSION
This document describes RDF::Query::Compiler::SQL version 2.908.
METHODS
"new ( $parse_tree )"
Returns a new compiler object.
"compile ()"
Returns a SQL query string for the specified parse tree.
"emit_select"
Returns a SQL query string representing the query.
"limit_clause"
Returns a SQL LIMIT clause, or an empty string if the query does not need limiting.
"order_by_clause"
Returns a SQL ORDER BY clause, or an empty string if the query does not use ordering.
"variable_columns ( $var )"
Given a variable name, returns the set of column aliases that store the values for the column (values for Literals, URIs, and Blank
Nodes).
"add_variable_values_joins"
Modifies the query by adding LEFT JOINs to the tables in the database that contain the node values (for literals, resources, and blank
nodes).
"patterns2sql ( @triples, $level, %args )"
Builds the SQL query in instance data from the supplied @triples. $level is used as a unique identifier for recursive calls.
%args may contain callback closures for the following keys:
'where_hook'
'from_hook'
When present, these closures are used to add SQL FROM and WHERE clauses to the query instead of adding them directly to the object's
instance data.
"expr2sql ( $expression, $level, %args )"
Returns a SQL expression for the supplied query $expression. $level is used as a unique identifier for recursive calls.
%args may contain callback closures for the following keys:
'where_hook'
'from_hook'
When present, these closures are used to add necessary SQL FROM and WHERE clauses to the query.
"_mysql_hash ( $data )"
Returns a hash value for the supplied $data string. This value is computed using the same algorithm that Redland's mysql storage
backend uses.
"_mysql_node_hash ( $node )"
Returns a hash value (computed by "_mysql_hash" for the supplied $node. The hash value is based on the string value of the node and
the node type.
"qualify_uri ( $uri )"
Returns a fully qualified URI from the supplied $uri. $uri may already be a qualified URI, or a parse tree for a qualified URI or
QName. If $uri is a QName, the namespaces defined in the query parse tree are used to fully qualify.
"add_function ( $uri, $function )"
Associates the custom function $function (a CODE reference) with the specified URI, allowing the function to be called by query
FILTERs.
"get_function ( $uri )"
If $uri is associated with a query function, returns a CODE reference to the function. Otherwise returns "undef".
AUTHOR
Gregory Williams <gwilliams@cpan.org>
perl v5.14.2 2012-01-31 RDF::Query::Compiler::SQL(3pm)