forked from sheetjs/docs.sheetjs.com
32 lines
871 B
JavaScript
32 lines
871 B
JavaScript
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/* Load SQLite3 connector library */
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import Database from "better-sqlite3";
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/* Load SheetJS library */
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import * as XLSX from "xlsx";
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import * as fs from "fs";
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XLSX.set_fs(fs);
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/* Initialize database */
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var db = Database("chinook.db");
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/* Create new workbook */
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var wb = XLSX.utils.book_new();
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/* Get list of table names */
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var sql = db.prepare("SELECT name FROM sqlite_master WHERE type='table'");
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var result = sql.all();
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/* Loop across each name */
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result.forEach(function(row) {
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/* Get first 100K rows */
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var aoo = db.prepare("SELECT * FROM '" + row.name + "' LIMIT 100000").all();
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if(aoo.length > 0) {
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/* Create Worksheet from the row objects */
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var ws = XLSX.utils.json_to_sheet(aoo, {dense: true});
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/* Add to Workbook */
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XLSX.utils.book_append_sheet(wb, ws, row.name);
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}
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});
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/* Write File */
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XLSX.writeFile(wb, "SheetJSQLiteNode.xlsx");
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