| (window.webpackJsonp=window.webpackJsonp||[]).push([[219],{782:function(e,s,t){"use strict";t.r(s);var a=t(68),n=Object(a.a)({},(function(){var e=this,s=e.$createElement,t=e._self._c||s;return t("ContentSlotsDistributor",{attrs:{"slot-key":e.$parent.slotKey}},[t("h1",{attrs:{id:"iotdb-query-statement"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#iotdb-query-statement"}},[e._v("#")]),e._v(" IoTDB Query Statement")]),e._v(" "),t("p",[e._v("In this part, we will introduce you IoTDB's Query Language. IoTDB offers you a SQL-like query language for interacting with IoTDB, the query language can be devided into 4 major parts:")]),e._v(" "),t("ul",[t("li",[e._v("Schema Statement: statements about schema management are all listed in this section.")]),e._v(" "),t("li",[e._v("Data Management Statement: statements about data management (such as: data insertion, data query, etc.) are all listed in this section.")]),e._v(" "),t("li",[e._v("Database Management Statement: statements about database management and authentication are all listed in this section.")]),e._v(" "),t("li",[e._v("Functions: functions that IoTDB offers are all listed in this section.")])]),e._v(" "),t("p",[e._v("All of these statements are write in IoTDB's own syntax, for details about the syntax composition, please check the "),t("code",[e._v("Reference")]),e._v(" section.")]),e._v(" "),t("h2",{attrs:{id:"schema-statement"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#schema-statement"}},[e._v("#")]),e._v(" Schema Statement")]),e._v(" "),t("ul",[t("li",[e._v("Set Storage Group")])]),e._v(" "),t("div",{staticClass:"language-SQL line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-sql"}},[t("code",[t("span",{pre:!0,attrs:{class:"token keyword"}},[e._v("SET")]),e._v(" STORAGE "),t("span",{pre:!0,attrs:{class:"token keyword"}},[e._v("GROUP")]),e._v(" "),t("span",{pre:!0,attrs:{class:"token keyword"}},[e._v("TO")]),e._v(" "),t("span",{pre:!0,attrs:{class:"token operator"}},[e._v("<")]),e._v("PrefixPath"),t("span",{pre:!0,attrs:{class:"token operator"}},[e._v(">")]),e._v("\nEg: IoTDB "),t("span",{pre:!0,attrs:{class:"token operator"}},[e._v(">")]),e._v(" "),t("span",{pre:!0,attrs:{class:"token keyword"}},[e._v("SET")]),e._v(" STORAGE "),t("span",{pre:!0,attrs:{class:"token keyword"}},[e._v("GROUP")]),e._v(" "),t("span",{pre:!0,attrs:{class:"token keyword"}},[e._v("TO")]),e._v(" root"),t("span",{pre:!0,attrs:{class:"token punctuation"}},[e._v(".")]),e._v("ln"),t("span",{pre:!0,attrs:{class:"token punctuation"}},[e._v(".")]),e._v("wf01"),t("span",{pre:!0,attrs:{class:"token punctuation"}},[e._v(".")]),e._v("wt01\nNote: PrefixPath can "),t("span",{pre:!0,attrs:{class:"token operator"}},[e._v("not")]),e._v(" include "),t("span",{pre:!0,attrs:{class:"token punctuation"}},[e._v("`")]),t("span",{pre:!0,attrs:{class:"token operator"}},[e._v("*")]),t("span",{pre:!0,attrs:{class:"token punctuation"}},[e._v("`")]),e._v("\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("ul",[t("li",[e._v("Create Timeseries Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("CREATE TIMESERIES <Timeseries> WITH <AttributeClauses>\nAttributeClauses : DATATYPE=<DataTypeValue> COMMA ENCODING=<EncodingValue> [COMMA <ExtraAttributeClause>]*\nDataTypeValue: BOOLEAN | DOUBLE | FLOAT | INT32 | INT64 | TEXT\nEncodingValue: GORILLA | PLAIN | RLE | TS_2DIFF | REGULAR\nExtraAttributeClause: {\n\tCOMPRESSOR = <CompressorValue>\n\tMAX_POINT_NUMBER = Integer\n}\nCompressorValue: UNCOMPRESSED | SNAPPY\nEg: IoTDB > CREATE TIMESERIES root.ln.wf01.wt01.status WITH DATATYPE=BOOLEAN, ENCODING=PLAIN\nEg: IoTDB > CREATE TIMESERIES root.ln.wf01.wt01.temperature WITH DATATYPE=FLOAT, ENCODING=RLE\nEg: IoTDB > CREATE TIMESERIES root.ln.wf01.wt01.temperature WITH DATATYPE=FLOAT, ENCODING=RLE, COMPRESSOR=SNAPPY, MAX_POINT_NUMBER=3\nNote: Datatype and encoding type must be corresponding. Please check Chapter 3 Encoding Section for details.\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br"),t("span",{staticClass:"line-number"},[e._v("5")]),t("br"),t("span",{staticClass:"line-number"},[e._v("6")]),t("br"),t("span",{staticClass:"line-number"},[e._v("7")]),t("br"),t("span",{staticClass:"line-number"},[e._v("8")]),t("br"),t("span",{staticClass:"line-number"},[e._v("9")]),t("br"),t("span",{staticClass:"line-number"},[e._v("10")]),t("br"),t("span",{staticClass:"line-number"},[e._v("11")]),t("br"),t("span",{staticClass:"line-number"},[e._v("12")]),t("br"),t("span",{staticClass:"line-number"},[e._v("13")]),t("br")])]),t("ul",[t("li",[e._v("Delete Timeseries Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("DELETE TIMESERIES <PrefixPath> [COMMA <PrefixPath>]*\nEg: IoTDB > DELETE TIMESERIES root.ln.wf01.wt01.status\nEg: IoTDB > DELETE TIMESERIES root.ln.wf01.wt01.status, root.ln.wf01.wt01.temperature\nEg: IoTDB > DELETE TIMESERIES root.ln.wf01.wt01.*\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br")])]),t("ul",[t("li",[e._v("Show All Timeseries Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SHOW TIMESERIES\nEg: IoTDB > SHOW TIMESERIES\nNote: This statement can only be used in IoTDB Client. If you need to show all timeseries in JDBC, please use `DataBaseMetadata` interface.\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("ul",[t("li",[e._v("Show Specific Timeseries Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SHOW TIMESERIES <Path>\nEg: IoTDB > SHOW TIMESERIES root\nEg: IoTDB > SHOW TIMESERIES root.ln\nEg: IoTDB > SHOW TIMESERIES root.ln.*.*.status\nEg: IoTDB > SHOW TIMESERIES root.ln.wf01.wt01.status\nNote: The path can be prefix path, star path or timeseries path\nNote: This statement can be used in IoTDB Client and JDBC.\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br"),t("span",{staticClass:"line-number"},[e._v("5")]),t("br"),t("span",{staticClass:"line-number"},[e._v("6")]),t("br"),t("span",{staticClass:"line-number"},[e._v("7")]),t("br")])]),t("ul",[t("li",[e._v("Show Storage Group Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SHOW STORAGE GROUP\nEg: IoTDB > SHOW STORAGE GROUP\nNote: This statement can be used in IoTDB Client and JDBC.\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("h2",{attrs:{id:"data-management-statement"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#data-management-statement"}},[e._v("#")]),e._v(" Data Management Statement")]),e._v(" "),t("ul",[t("li",[e._v("Insert Record Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("INSERT INTO <PrefixPath> LPAREN TIMESTAMP COMMA <Sensor> [COMMA <Sensor>]* RPAREN VALUES LPAREN <TimeValue>, <PointValue> [COMMA <PointValue>]* RPAREN\nSensor : Identifier\nEg: IoTDB > INSERT INTO root.ln.wf01.wt01(timestamp,status) values(1509465600000,true)\nEg: IoTDB > INSERT INTO root.ln.wf01.wt01(timestamp,status) VALUES(NOW(), false)\nEg: IoTDB > INSERT INTO root.ln.wf01.wt01(timestamp,temperature) VALUES(2017-11-01T00:17:00.000+08:00,24.22028)\nEg: IoTDB > INSERT INTO root.ln.wf01.wt01(timestamp, status, temperature) VALUES (1509466680000, false, 20.060787);\nNote: the statement needs to satisfy this constraint: <PrefixPath> + <Path> = <Timeseries>\nNote: The order of Sensor and PointValue need one-to-one correspondence\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br"),t("span",{staticClass:"line-number"},[e._v("5")]),t("br"),t("span",{staticClass:"line-number"},[e._v("6")]),t("br"),t("span",{staticClass:"line-number"},[e._v("7")]),t("br"),t("span",{staticClass:"line-number"},[e._v("8")]),t("br")])]),t("ul",[t("li",[e._v("Update Record Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("UPDATE <UpdateClause> SET <SetClause> WHERE <WhereClause>\nUpdateClause: <prefixPath>\nSetClause: <SetExpression> \nSetExpression: <Path> EQUAL <PointValue>\nWhereClause : <Condition> [(AND | OR) <Condition>]*\nCondition : <Expression> [(AND | OR) <Expression>]*\nExpression : [NOT | !]? TIME PrecedenceEqualOperator <TimeValue>\nEg: IoTDB > UPDATE root.ln.wf01.wt01 SET temperature = 23 WHERE time < NOW() and time > 2017-11-1T00:15:00+08:00\nNote: the statement needs to satisfy this constraint: <PrefixPath> + <Path> = <Timeseries>\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br"),t("span",{staticClass:"line-number"},[e._v("5")]),t("br"),t("span",{staticClass:"line-number"},[e._v("6")]),t("br"),t("span",{staticClass:"line-number"},[e._v("7")]),t("br"),t("span",{staticClass:"line-number"},[e._v("8")]),t("br"),t("span",{staticClass:"line-number"},[e._v("9")]),t("br")])]),t("ul",[t("li",[e._v("Delete Record Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("DELETE FROM <PrefixPath> [COMMA <PrefixPath>]* WHERE TIME LESSTHAN <TimeValue>\nEg: DELETE FROM root.ln.wf01.wt01.temperature WHERE time < 2017-11-1T00:05:00+08:00\nEg: DELETE FROM root.ln.wf01.wt01.status, root.ln.wf01.wt01.temperature WHERE time < NOW()\nEg: DELETE FROM root.ln.wf01.wt01.* WHERE time < 1509466140000\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br")])]),t("ul",[t("li",[e._v("Select Record Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SELECT <SelectClause> FROM <FromClause> [WHERE <WhereClause>]?\nSelectClause : <SelectPath> (COMMA <SelectPath>)*\nSelectPath : <FUNCTION> LPAREN <Path> RPAREN | <Path>\nFUNCTION : ‘COUNT’ , ‘MIN_TIME’, ‘MAX_TIME’, ‘MIN_VALUE’, ‘MAX_VALUE’\nFromClause : <PrefixPath> (COMMA <PrefixPath>)?\nWhereClause : <Condition> [(AND | OR) <Condition>]*\nCondition : <Expression> [(AND | OR) <Expression>]*\nExpression : [NOT | !]? <TimeExpr> | [NOT | !]? <SensorExpr>\nTimeExpr : TIME PrecedenceEqualOperator <TimeValue>\nSensorExpr : (<Timeseries> | <Path>) PrecedenceEqualOperator <PointValue>\nEg: IoTDB > SELECT status, temperature FROM root.ln.wf01.wt01 WHERE temperature < 24 and time > 2017-11-1 0:13:00\nEg. IoTDB > SELECT * FROM root\nEg. IoTDB > SELECT COUNT(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 25\nEg. IoTDB > SELECT MIN_TIME(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 25\nEg. IoTDB > SELECT MAX_TIME(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature > 24\nEg. IoTDB > SELECT MIN_VALUE(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature > 23\nEg. IoTDB > SELECT MAX_VALUE(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 25\nNote: the statement needs to satisfy this constraint: <Path>(SelectClause) + <PrefixPath>(FromClause) = <Timeseries>\nNote: If the <SensorExpr>(WhereClause) is started with <Path> and not with ROOT, the statement needs to satisfy this constraint: <PrefixPath>(FromClause) + <Path>(SensorExpr) = <Timeseries>\nNote: In Version 0.8.2, if <WhereClause> includes `OR`, time filter can not be used.\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br"),t("span",{staticClass:"line-number"},[e._v("5")]),t("br"),t("span",{staticClass:"line-number"},[e._v("6")]),t("br"),t("span",{staticClass:"line-number"},[e._v("7")]),t("br"),t("span",{staticClass:"line-number"},[e._v("8")]),t("br"),t("span",{staticClass:"line-number"},[e._v("9")]),t("br"),t("span",{staticClass:"line-number"},[e._v("10")]),t("br"),t("span",{staticClass:"line-number"},[e._v("11")]),t("br"),t("span",{staticClass:"line-number"},[e._v("12")]),t("br"),t("span",{staticClass:"line-number"},[e._v("13")]),t("br"),t("span",{staticClass:"line-number"},[e._v("14")]),t("br"),t("span",{staticClass:"line-number"},[e._v("15")]),t("br"),t("span",{staticClass:"line-number"},[e._v("16")]),t("br"),t("span",{staticClass:"line-number"},[e._v("17")]),t("br"),t("span",{staticClass:"line-number"},[e._v("18")]),t("br"),t("span",{staticClass:"line-number"},[e._v("19")]),t("br"),t("span",{staticClass:"line-number"},[e._v("20")]),t("br")])]),t("ul",[t("li",[e._v("Group By Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v('SELECT <SelectClause> FROM <FromClause> WHERE <WhereClause> GROUP BY <GroupByClause>\nSelectClause : <Function> [COMMA < Function >]*\nFunction : <AggregationFunction> LPAREN <Path> RPAREN\nFromClause : <PrefixPath>\nWhereClause : <Condition> [(AND | OR) <Condition>]*\nCondition : <Expression> [(AND | OR) <Expression>]*\nExpression : [NOT | !]? <TimeExpr> | [NOT | !]? <SensorExpr>\nTimeExpr : TIME PrecedenceEqualOperator <TimeValue>\nSensorExpr : (<Timeseries> | <Path>) PrecedenceEqualOperator <PointValue>\nGroupByClause : LPAREN <TimeUnit> (COMMA TimeValue)? COMMA <TimeInterval> (COMMA <TimeInterval>)* RPAREN\nTimeUnit : Integer <DurationUnit>\nDurationUnit : "ms" | "s" | "m" | "h" | "d" | "w"\nTimeInterval: LBRACKET <TimeValue> COMMA <TimeValue> RBRACKET\nEg: SELECT COUNT(status), COUNT(temperature) FROM root.ln.wf01.wt01 where temperature < 24 GROUP BY(5m, [1509465720000, 1509466380000])\nEg. SELECT COUNT (status), MAX_VALUE(temperature) FROM root.ln.wf01.wt01 WHERE time < 1509466500000 GROUP BY(5m, 1509465660000, [1509465720000, 1509466380000])\nEg. 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Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v('SELECT <SelectClause> FROM <FromClause> WHERE <WhereClause> FILL <FillClause>\nSelectClause : <Path> [COMMA <Path>]*\nFromClause : < PrefixPath > [COMMA < PrefixPath >]*\nWhereClause : <WhereExpression>\nWhereExpression : TIME EQUAL <TimeValue>\nFillClause : LPAREN <TypeClause> [COMMA <TypeClause>]* RPAREN\nTypeClause : <Int32Clause> | <Int64Clause> | <FloatClause> | <DoubleClause> | <BoolClause> | <TextClause>\nInt32Clause: INT32 LBRACKET (<LinearClause> | <PreviousClause>) RBRACKET\nInt64Clause: INT64 LBRACKET (<LinearClause> | <PreviousClause>) RBRACKET\nFloatClause: FLOAT LBRACKET (<LinearClause> | <PreviousClause>) RBRACKET\nDoubleClause: DOUBLE LBRACKET (<LinearClause> | <PreviousClause>) RBRACKET\nBoolClause: BOOLEAN LBRACKET (<LinearClause> | <PreviousClause>) RBRACKET\nTextClause: TEXT LBRACKET (<LinearClause> | <PreviousClause>) 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<TimeUnit> needs to be greater than 0\n')])]),e._v(" 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Statement")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SELECT <SelectClause> FROM <FromClause> [WHERE <WhereClause>] [LIMIT <LIMITClause>] [SLIMIT <SLIMITClause>]\nSelectClause : [<Path> | Function]+\nFunction : <AggregationFunction> LPAREN <Path> RPAREN\nFromClause : <Path>\nWhereClause : <Condition> [(AND | OR) <Condition>]*\nCondition : <Expression> [(AND | OR) <Expression>]*\nExpression: [NOT|!]?<TimeExpr> | [NOT|!]?<SensorExpr>\nTimeExpr : TIME PrecedenceEqualOperator <TimeValue>\nSensorExpr : (<Timeseries>|<Path>) PrecedenceEqualOperator <PointValue>\nLIMITClause : <N> [OFFSETClause]?\nN : NonNegativeInteger\nOFFSETClause : OFFSET <OFFSETValue>\nOFFSETValue : NonNegativeInteger\nSLIMITClause : <SN> [SOFFSETClause]?\nSN : NonNegativeInteger\nSOFFSETClause : SOFFSET <SOFFSETValue>\nSOFFSETValue : NonNegativeInteger\nNonNegativeInteger:= ('+')? Digit+\nEg: IoTDB > SELECT status, temperature FROM root.ln.wf01.wt01 WHERE temperature < 24 and time > 2017-11-1 0:13:00 LIMIT 3 OFFSET 2\nEg. 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\nuserName:=identifier \npassword:=identifier\nEg: IoTDB > CREATE USER thulab pwd;\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br")])]),t("ul",[t("li",[e._v("Delete User")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("DROP USER <userName>; \nuserName:=identifier\nEg: IoTDB > DROP USER xiaoming;\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("ul",[t("li",[e._v("Create Role")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("CREATE ROLE <roleName>; 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\nprivileges:= string (COMMA string)* \nroleName:= identifier \nnodeName:=identifier (DOT identifier)*\nEg: IoTDB > REVOKE ROLE temprole PRIVILEGES 'DELETE_TIMESERIES' ON root.ln;\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br"),t("span",{staticClass:"line-number"},[e._v("5")]),t("br")])]),t("ul",[t("li",[e._v("Revoke Role From User")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("REVOKE <roleName> FROM <userName>;\nroleName:=identifier\nuserName:=identifier\nEg: IoTDB > REVOKE temproleFROM tempuser;\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br")])]),t("ul",[t("li",[e._v("List Users")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("LIST USER\nEg: IoTDB > LIST USER\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br")])]),t("ul",[t("li",[e._v("List Roles")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("LIST ROLE\nEg: IoTDB > LIST ROLE\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br")])]),t("ul",[t("li",[e._v("List Privileges")])]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("LIST PRIVILEGES USER <username> ON <path>; 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The result is a signed 64-bit integer. If there are no matching rows, COUNT () returns 0.")]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SELECT COUNT(Path) (COMMA COUNT(Path))* FROM <FromClause> [WHERE <WhereClause>]?\nEg. SELECT COUNT(status), COUNT(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 24\nNote: the statement needs to satisfy this constraint: <PrefixPath> + <Path> = <Timeseries>\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("ul",[t("li",[e._v("FIRST")])]),e._v(" "),t("p",[e._v("The FIRST function returns the first point value of the choosen timeseries(one or more).")]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SELECT FIRST (Path) (COMMA FIRST (Path))* FROM <FromClause> [WHERE <WhereClause>]?\nEg. SELECT FIRST (status), FIRST (temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 24\nNote: the statement needs to satisfy this constraint: <PrefixPath> + <Path> = <Timeseries>\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("ul",[t("li",[e._v("MAX_TIME")])]),e._v(" "),t("p",[e._v("The MAX_TIME function returns the maximum timestamp of the choosen timeseries(one or more). The result is a signed 64-bit integer, greater than 0.")]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SELECT MAX_TIME (Path) (COMMA MAX_TIME (Path))* FROM <FromClause> [WHERE <WhereClause>]?\nEg. SELECT MAX_TIME(status), MAX_TIME(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 24\nNote: the statement needs to satisfy this constraint: <PrefixPath> + <Path> = <Timeseries>\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("ul",[t("li",[e._v("MAX_VALUE")])]),e._v(" "),t("p",[e._v("The MAX_VALUE function returns the maximum value(lexicographically ordered) of the choosen timeseries (one or more).")]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SELECT MAX_VALUE (Path) (COMMA MAX_VALUE (Path))* FROM <FromClause> [WHERE <WhereClause>]?\nEg. SELECT MAX_VALUE(status), MAX_VALUE(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 24\nNote: the statement needs to satisfy this constraint: <PrefixPath> + <Path> = <Timeseries>\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("ul",[t("li",[e._v("MEAN")])]),e._v(" "),t("p",[e._v("The MEAN function returns the arithmetic mean value of the choosen timeseries over a specified period of time. The timeseries must be int32, int64, float, double type, and the other types are not to be calculated. The result is a double type number.")]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SELECT MEAN (Path) (COMMA MEAN (Path))* FROM <FromClause> [WHERE <WhereClause>]?\nEg. SELECT MEAN (temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 24\nNote: the statement needs to satisfy this constraint: <PrefixPath> + <Path> = <Timeseries>\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("ul",[t("li",[e._v("MIN_TIME")])]),e._v(" "),t("p",[e._v("The MIN_TIME function returns the minimum timestamp of the choosen timeseries(one or more). The result is a signed 64-bit integer, greater than 0.")]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SELECT MIN_TIME (Path) (COMMA MIN_TIME (Path))*FROM <FromClause> [WHERE <WhereClause>]?\nEg. SELECT MIN_TIME(status), MIN_TIME(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 24\nNote: the statement needs to satisfy this constraint: <PrefixPath> + <Path> = <Timeseries>\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("ul",[t("li",[e._v("MIN_VALUE")])]),e._v(" "),t("p",[e._v("The MIN_VALUE function returns the minimum value(lexicographically ordered) of the choosen timeseries (one or more).")]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SELECT MIN_VALUE (Path) (COMMA MIN_VALUE (Path))* FROM <FromClause> [WHERE <WhereClause>]?\nEg. SELECT MIN_VALUE(status),MIN_VALUE(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 24\nNote: the statement needs to satisfy this constraint: <PrefixPath> + <Path> = <Timeseries>\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])]),t("ul",[t("li",[e._v("NOW")])]),e._v(" "),t("p",[e._v("The NOW function returns the current timestamp. This function can be used in the data operation statement to represent time. The result is a signed 64-bit integer, greater than 0.")]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("NOW()\nEg. INSERT INTO root.ln.wf01.wt01(timestamp,status) VALUES(NOW(), false) \nEg. UPDATE root.ln.wf01.wt01 SET temperature = 23 WHERE time < NOW()\nEg. DELETE FROM root.ln.wf01.wt01.status, root.ln.wf01.wt01.temperature WHERE time < NOW()\nEg. SELECT * FROM root WHERE time < NOW()\nEg. SELECT COUNT(temperature) FROM root.ln.wf01.wt01 WHERE time < NOW()\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br"),t("span",{staticClass:"line-number"},[e._v("4")]),t("br"),t("span",{staticClass:"line-number"},[e._v("5")]),t("br"),t("span",{staticClass:"line-number"},[e._v("6")]),t("br")])]),t("ul",[t("li",[e._v("SUM")])]),e._v(" "),t("p",[e._v("The SUM function returns the sum of the choosen timeseries (one or more) over a specified period of time. The timeseries must be int32, int64, float, double type, and the other types are not to be calculated. The result is a double type number.")]),e._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[e._v("SELECT SUM(Path) (COMMA SUM(Path))* FROM <FromClause> [WHERE <WhereClause>]?\nEg. SELECT SUM(temperature) FROM root.ln.wf01.wt01 WHERE root.ln.wf01.wt01.temperature < 24\nNote: the statement needs to satisfy this constraint: <PrefixPath> + <Path> = <Timeseries>\n")])]),e._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[e._v("1")]),t("br"),t("span",{staticClass:"line-number"},[e._v("2")]),t("br"),t("span",{staticClass:"line-number"},[e._v("3")]),t("br")])])])}),[],!1,null,null,null);s.default=n.exports}}]); |