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Why use multiple columns as primary keys (composite primary key)
...e benefit explanation would be even better
– Martian2049
May 3 '18 at 4:10
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How do I seed a random class to avoid getting duplicate random values [duplicate]
...y random.
– Omidoo
Sep 27 '12 at 17:04
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How to delete a specific line in a file?
...nczivanleoncz
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What is the benefit of zerofill in MySQL?
...id int PRIMARY KEY,val TINYINT(10) ZEROFILL);
Query OK, 0 rows affected (0.04 sec)
mysql> INSERT INTO tin3 VALUES(1,12),(2,7),(4,101);
Query OK, 3 rows affected (0.02 sec)
Records: 3 Duplicates: 0 Warnings: 0
mysql> SELECT * FROM tin3;
+----+------------+
| id | val |
+----+--------...
How to get Vim to highlight non-ascii characters?
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answered Jun 16 '13 at 13:04
RemanReman
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PostgreSQL: How to pass parameters from command line?
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GavinGavin
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How do you use Mongoose without defining a schema?
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Here is the details description: [https://www.meanstack.site/2020/01/save-data-to-mongodb-without-defining.html][1]
const express = require('express')()
const mongoose = require('mongoose')
const bodyParser = require('body-parser')
const Schema = mon...
How do I add an existing directory tree to a project in Visual Studio?
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edited Apr 8 '16 at 17:04
Maria Ines Parnisari
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Return a “NULL” object if search result not found
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edited Nov 9 '14 at 23:04
answered Apr 14 '10 at 16:44
J...
Check if an array is empty or exists
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Tushar Walzade
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answered Jun 21 '16 at 20:04
James DrinkardJames...