全文检索- Oracle/MySql/达梦

ALTER TABLE dataset_ods ENGINE = MyISAM;
ALTER TABLE dataset_ods ADD FULLTEXT (abstract);

SELECT * FROM dataset_ods  WHERE MATCH(abstract) AGAINST(‘XX‘);

CREATE INDEX FullTextIndex_dataset_ods ON dataset_ods( ABSTRACT ) INDEXTYPE is CTXSYS.CONTEXT;

BEGIN 
  ctx_ddl.sync_index (‘fulltextindex_dataset_ods‘, ‘2M‘);
  ctx_ddl.optimize_index (‘fulltextindex_dataset_ods‘, ‘full‘,null,null,null);
END;


SELECT * FROM dataset_ods  WHERE CONTAINS (ABSTRACT ,‘XX‘)>0

create context index FullTextIndex_dataset_ods on dataset_ods(ABSTRACT)LEXER DEFAULT_LEXER;

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SELECT * FROM dataset_ods WHERE CONTAINS (ABSTRACT,‘XX‘)