teradatasql
Version:
Teradata SQL Driver for Node.js
121 lines • 4.88 kB
JavaScript
;
// Copyright 2023 by Teradata Corporation. All rights reserved.
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
// This sample program demonstrates how to export the results from a select statement into a csv file.
// Run "npm install csv" to install the CSV module
const fs = __importStar(require("fs"));
const sync_1 = require("csv-parse/sync");
// @ts-ignore
const teradatasql = __importStar(require("teradatasql"));
const con = teradatasql.connect({ host: "whomooz", user: "guest", password: "please" });
try {
const cur = con.cursor();
try {
const cur2 = con.cursor();
try {
const sTableName = "FastExportCSV";
let sRequest = "DROP TABLE " + sTableName;
try {
console.log(sRequest);
cur.execute(sRequest);
}
catch (ex) {
if (ex instanceof teradatasql.OperationalError) {
console.log("Ignoring", ex.message.split("\n")[0]);
}
else {
throw ex;
}
}
sRequest = "CREATE TABLE " + sTableName + " (c1 INTEGER NOT NULL, c2 VARCHAR(10))";
console.log(sRequest);
cur.execute(sRequest);
try {
const sInsert = "INSERT INTO " + sTableName + " VALUES (?, ?)";
console.log(sInsert);
cur.execute(sInsert, [
[1, null],
[2, "abc"],
[3, "def"],
[4, "mno"],
[5, null],
[6, "pqr"],
[7, "uvw"],
[8, "xyz"],
[9, null],
]);
const sFileName = "dataJs.csv";
const sSelect = "{fn teradata_try_fastexport}{fn teradata_write_csv(" + sFileName + ")}SELECT * FROM " + sTableName;
console.log(sSelect);
cur.execute(sSelect);
try {
console.log("Reading file", sFileName);
const sRows = (0, sync_1.parse)(fs.readFileSync(sFileName, { encoding: "utf-8" }));
console.log(sRows);
sRequest = "{fn teradata_nativesql}{fn teradata_get_warnings}" + sSelect;
console.log(sRequest);
cur2.execute(sRequest);
let rows = cur2.fetchall();
for (const row of rows) {
console.log(row);
}
sRequest = "{fn teradata_nativesql}{fn teradata_get_errors}" + sSelect;
console.log(sRequest);
cur2.execute(sRequest);
rows = cur2.fetchall();
for (const row of rows) {
console.log(row);
}
sRequest = "{fn teradata_nativesql}{fn teradata_logon_sequence_number}" + sSelect;
console.log(sRequest);
cur2.execute(sRequest);
rows = cur2.fetchall();
for (const row of rows) {
console.log(row);
}
}
finally {
fs.unlinkSync(sFileName);
}
}
finally {
sRequest = "DROP TABLE " + sTableName;
console.log(sRequest);
cur.execute(sRequest);
}
}
finally {
cur2.close();
}
}
finally {
cur.close();
}
}
finally {
con.close();
}
//# sourceMappingURL=FastExportCSV.js.map