55 lines
1.5 KiB
JavaScript
55 lines
1.5 KiB
JavaScript
const sqlite3 = require('sqlite3').verbose();
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// 连接数据库
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const db = new sqlite3.Database('company_finance.db');
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console.log('检查备份数据...');
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// 检查备份表中的数据量
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db.get('SELECT COUNT(*) as count FROM products_backup', (err, row) => {
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if (err) {
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console.error('错误:', err);
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db.close();
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return;
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}
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console.log(`备份表中有 ${row.count} 条商品数据`);
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if (row.count > 0) {
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console.log('开始恢复数据...');
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// 从备份表恢复数据到主表
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db.run(`
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INSERT INTO products (
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product_id, product_name, category_id, parent_category_id,
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specifications, unit, price, stock, min_stock,
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supplier_id, description, created_at, updated_at
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) SELECT
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product_id, product_name, category_id, parent_category_id,
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specifications, unit, price, stock, min_stock,
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supplier_id, description, created_at, updated_at
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FROM products_backup
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`, function(err) {
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if (err) {
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console.error('恢复数据失败:', err);
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db.close();
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return;
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}
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console.log(`成功恢复 ${this.changes} 条商品数据`);
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// 验证恢复结果
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db.get('SELECT COUNT(*) as count FROM products', (err, row) => {
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if (err) {
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console.error('验证失败:', err);
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} else {
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console.log(`恢复后商品表中有 ${row.count} 条数据`);
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}
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db.close();
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});
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});
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} else {
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console.log('备份表为空，无法恢复数据');
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db.close();
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}
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}); |