README.md

Neo4j SQL Importer

This is a first attempt to do a reasonable mapping from SQL dump statements in relational databases into a graph in Neo4j open source graph database.

Can be imported from SQL like

BEGIN TRANSACTION;
CREATE TABLE Book(
      id int primary key,
      title varchar(250),
);
INSERT INTO "Book" VALUES(1,,'Pippi 
Långstrump');
CREATE TABLE Isbn(
        id int primary key,
        book_id int,
        isbn varchar(20),
        comment varchar(250)
);
INSERT INTO "Isbn" VALUES('     1',1,'04712
17476','');
CREATE TABLE Author (
        id int primary key,
        name varchar(250)
);
INSERT INTO "Author" VALUES(1,'Astrid Lindgren');
CREATE TABLE Authorship (
        id int primary key,
        author_id int,
        book_id int);
INSERT INTO "Authorship" VALUES(1,1,1);
CREATE TABLE tag ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL);
INSERT INTO "tag" VALUES(1,'childrens books');
INSERT INTO "tag" VALUES(2,'books');
INSERT INTO "tag" VALUES(3,'youth books');
CREATE TABLE tagging ("id" INTEGER PRIMARY KEY NOT NULL, "tag_id" integer DEFAULT NULL, "book_id" integer DEFAULT NULL);
INSERT INTO "tagging" VALUES(1,1,1);
CREATE TABLE tag_hierarchy ("id" INTEGER PRIMARY KEY NOT NULL, "tag_id" integer DEFAULT NULL, "parent_id" integer DEFAULT NULL);
#INSERT INTO "tag_hierarchy" VALUES(1,2,NULL);
INSERT INTO "tag_hierarchy" VALUES(2,1,2);
CREATE TABLE tag_relation ("id" INTEGER PRIMARY KEY NOT NULL, "from_id" integer DEFAULT NULL, "to_id" integer DEFAULT NULL, "desc" varchar(255) DEFAULT NULL);
INSERT INTO "tag_relation" VALUES(1,1,3,'same genre');
COMMIT;