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GRAPH
Mathias Rangel Wulff edited this page Jul 11, 2015
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Keyword for graph-related commands.
AlaSQL is a multi-paradigm database with support for both documents and graphs. Below you can find an example how to create graph:
alasql('CREATE GRAPH #Olga, #Helen, #Pablo, #Andrey, #Alice, \
#Olga >> #Pablo, #Helen >> #Andrey, \
#Pablo >> #Alice, #Andrey >> #Alice');
Search over it with SEARCH
operator:
// Whom loves Olga?
alasql('SEARCH / #Olga >> name');
// ['Pablo']
// Whom loves Olga's love objects?
alasql('SEARCH / #Olga >> >> name');
// ['Alice']
// Who loves lovers of Alice?
alasql('SEARCH / ANY(>> >> #Alice) name');
// ['Olga','Helen']
You also make searches over JSON object with SEARCH operator:
var data = {a:{a:{a:{a:{b:10}}}},b:20};
var res = alasql('SEARCH a b FROM ?',[data]);
var res = alasql('SEARCH (a)+ b FROM ?',[data]);
var res = alasql('SEARCH (a a)+ b FROM ?',[data]);
var res = alasql('SEARCH (a a a)+ b FROM ?',[data]);
var res = alasql('SEARCH (/)+ b FROM ?',[data]);
var res = alasql('SEARCH /+b FROM ?',[data]);
var res = alasql('SEARCH a* b FROM ?',[data]);
var res = alasql('SEARCH a+ b FROM ?',[data]);
var res = alasql('SEARCH a? b WHERE(b>20) FROM ?',[data]);
Another example:
var res = alasql('CREATE GRAPH Pablo, Maxim, Alex, Napoleon, \
Josephine, Kate, Julia {age:27}, Paloma, \
#Pablo >loves> #Julia, #Maxim >> #Julia, #Alex >> #Kate, \
#Kate >> #Julia, #Alex >> #Paloma, #Napoleon > "loves" > #Josephine, \
#Josephine >"knows"> #Pablo');
var res = alasql('SEARCH PATH(#Pablo) name FROM #Napoleon ');
// returns ['loves','Josephine','knows','Pablo']
You can play with graphs in AlaSQL in this jsFiddle example.
Please see more examples in test300 - test309
© 2014-2024, Andrey Gershun & Mathias Rangel Wulff
Please help improve the documentation by opening a PR on the wiki repo