126 lines
3.1 KiB
JavaScript
126 lines
3.1 KiB
JavaScript
const taos = require('td2.0-connector');
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var conn = taos.connect({host:"127.0.0.1", user:"root", password:"taosdata", config:"/etc/taos",port:0})
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var c1 = conn.cursor(); // Initializing a new cursor
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let stime = new Date();
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let interval = 1000;
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function convertDateToTS(date) {
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let tsArr = date.toISOString().split("T")
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return "\"" + tsArr[0] + " " + tsArr[1].substring(0, tsArr[1].length - 1) + "\"";
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}
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function R(l, r) {
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return Math.random() * (r - l) - r;
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}
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function randomBool() {
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if (Math.random() < 0.5) {
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return true;
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}
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return false;
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}
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// Initialize
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const dbname = "nodejs_1970_db";
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const tbname = "t1";
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let dropDB = "drop database if exists " + dbname
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console.log(dropDB);//asdasdasd
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c1.execute(dropDB);///asdasd
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let createDB = "create database " + dbname + " keep 36500"
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console.log(createDB);
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c1.execute(createDB);
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let useTbl = "use " + dbname
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console.log(useTbl)
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c1.execute(useTbl);
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let createTbl = "create table if not exists " + tbname + "(ts timestamp,id int)"
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console.log(createTbl);
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c1.execute(createTbl);
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//1969-12-31 23:59:59.999
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//1970-01-01 00:00:00.000
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//1970-01-01 07:59:59.999
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//1970-01-01 08:00:00.000a
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//1628928479484 2021-08-14 08:07:59.484
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let sql1 = "insert into " + dbname + "." + tbname + " values('1969-12-31 23:59:59.999',1)"
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console.log(sql1);
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c1.execute(sql1);
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let sql2 = "insert into " + dbname + "." + tbname + " values('1970-01-01 00:00:00.000',2)"
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console.log(sql2);
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c1.execute(sql2);
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let sql3 = "insert into " + dbname + "." + tbname + " values('1970-01-01 07:59:59.999',3)"
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console.log(sql3);
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c1.execute(sql3);
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let sql4 = "insert into " + dbname + "." + tbname + " values('1970-01-01 08:00:00.000',4)"
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console.log(sql4);
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c1.execute(sql4);
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let sql5 = "insert into " + dbname + "." + tbname + " values('2021-08-14 08:07:59.484',5)"
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console.log(sql5);
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c1.execute(sql5);
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// Select
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let query1 = "select * from " + dbname + "." + tbname
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console.log(query1);
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c1.execute(query1);
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var d = c1.fetchall();
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console.log(c1.fields);
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for (let i = 0; i < d.length; i++)
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console.log(d[i][0].valueOf());
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//initialize
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let initSql1 = "drop table if exists " + tbname
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console.log(initSql1);
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c1.execute(initSql1);
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console.log(createTbl);
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c1.execute(createTbl);
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c1.execute(useTbl)
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//-28800001 1969-12-31 23:59:59.999
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//-28800000 1970-01-01 00:00:00.000
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//-1 1970-01-01 07:59:59.999
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//0 1970-01-01 08:00:00.00
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//1628928479484 2021-08-14 08:07:59.484
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let sql11 = "insert into " + dbname + "." + tbname + " values(-28800001,11)";
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console.log(sql11);
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c1.execute(sql11);
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let sql12 = "insert into " + dbname + "." + tbname + " values(-28800000,12)"
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console.log(sql12);
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c1.execute(sql12);
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let sql13 = "insert into " + dbname + "." + tbname + " values(-1,13)"
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console.log(sql13);
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c1.execute(sql13);
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let sql14 = "insert into " + dbname + "." + tbname + " values(0,14)"
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console.log(sql14);
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c1.execute(sql14);
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let sql15 = "insert into " + dbname + "." + tbname + " values(1628928479484,15)"
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console.log(sql15);
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c1.execute(sql15);
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// Select
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console.log(query1);
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c1.execute(query1);
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var d = c1.fetchall();
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console.log(c1.fields);
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for (let i = 0; i < d.length; i++)
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console.log(d[i][0].valueOf());
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setTimeout(function () {
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conn.close();
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}, 2000);
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