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function"}},[t._v("outputResult")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("getResultSet")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Count timeseries group by each node at the given level")]),t._v("\n statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("execute")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"COUNT TIMESERIES root GROUP BY LEVEL=3"')]),n("span",{pre:!0,attrs:{class:"token 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punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"insert into root.demo(timestamp,s0) values(1,1);"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("addBatch")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"insert into root.demo(timestamp,s0) values(1,1);"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("addBatch")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"insert into root.demo(timestamp,s0) values(2,15);"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("addBatch")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"insert into root.demo(timestamp,s0) values(2,17);"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("addBatch")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"insert into root.demo(timestamp,s0) values(4,12);"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("executeBatch")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("clearBatch")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n "),n("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Full query statement")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("String")]),t._v(" sql "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"select * from root.demo"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("ResultSet")]),t._v(" resultSet "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("executeQuery")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("sql"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("System")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("out"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("println")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"sql: "')]),t._v(" "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("+")]),t._v(" sql"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("outputResult")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("resultSet"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n "),n("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Exact query statement")]),t._v("\n sql "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"select s0 from root.demo where time = 4;"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n resultSet"),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("executeQuery")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("sql"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("System")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("out"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("println")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"sql: "')]),t._v(" "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("+")]),t._v(" sql"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("outputResult")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("resultSet"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n "),n("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Time range query")]),t._v("\n sql "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"select s0 from root.demo where time >= 2 and time < 5;"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n resultSet "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("executeQuery")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("sql"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("System")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("out"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("println")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"sql: "')]),t._v(" "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("+")]),t._v(" sql"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("outputResult")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("resultSet"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n "),n("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Aggregate query")]),t._v("\n sql "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"select count(s0) from root.demo;"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n resultSet "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("executeQuery")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("sql"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("System")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("out"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("println")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"sql: "')]),t._v(" "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("+")]),t._v(" sql"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("outputResult")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("resultSet"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n "),n("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Delete time series")]),t._v("\n statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("execute")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"delete timeseries root.demo.s0"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n "),n("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//close connection")]),t._v("\n statement"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("close")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n connection"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("close")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("}")]),t._v("\n\n "),n("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("public")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("static")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Connection")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("getConnection")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// JDBC driver name and database URL")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("String")]),t._v(" driver "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"org.apache.iotdb.jdbc.IoTDBDriver"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("String")]),t._v(" url "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"jdbc:iotdb://127.0.0.1:6667/"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n "),n("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// Database credentials")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("String")]),t._v(" username "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"root"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("String")]),t._v(" password "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token string"}},[t._v('"root"')]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Connection")]),t._v(" connection "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("null")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("try")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Class")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("forName")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("driver"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n connection "),n("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("DriverManager")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("getConnection")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("url"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" username"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" password"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n "),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("}")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("catch")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("ClassNotFoundException")]),t._v(" e"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v(" "),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("\n e"),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),n("span",{pre:!0,attrs:{class:"token function"}},[t._v("printStackTrace")]),n("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),n("span",{pre:!0,attrs:{class:"token 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