Initial Commit

Author: CSFelix

4 - Python/0 - Databases Connections/0 - Redis DataBase.ipynb

@@ -0,0 +1,238 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "8a7b6b37",
+   "metadata": {},
+   "source": [
+    "<center>\n",
+    "    <h1 style=\"color:blue\">DataBase Connections - Redis</h1>\n",
+    "</center>\n",
+    "\n",
+    "<p>Tasks:</p>\n",
+    "\n",
+    "* Connection\n",
+    "* Insert\n",
+    "* Update\n",
+    "* Select\n",
+    "* Return\n",
+    "* Delete\n",
+    "* Close Connection\n",
+    "\n",
+    "<br>\n",
+    "\n",
+    "> pip install redis"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "7282cafe",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import redis"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "fe0a3fb4",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'4.3.1'"
+      ]
+     },
+     "execution_count": 2,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "redis.__version__"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "04330ae9",
+   "metadata": {},
+   "source": [
+    "<h2 style=\"color:blue\">0 - Connection</h2>"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "id": "24173f59",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "default_host = 'localhost'\n",
+    "default_port = 6379\n",
+    "#default_password =\n",
+    "\n",
+    "r = redis.Redis(\n",
+    "        host     =   default_host,\n",
+    "        port     =   default_port\n",
+    ")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "b3905553",
+   "metadata": {},
+   "source": [
+    "----\n",
+    "\n",
+    "<h2 style=\"color:blue\">1 - Insert, Update, Select, Return and Delete</h2>"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "id": "48359734",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "storaged_value = None"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "id": "57307cb0",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "b\"Hey there, I'm using Redis\"\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Set a single phrase and return it\n",
+    "\n",
+    "r.set('Phrase', 'Hey there, I\\'m using Redis')\n",
+    "storaged_value = r.get('Phrase')\n",
+    "\n",
+    "print(storaged_value)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "id": "1e590e66",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "b\"What's up, I'm using Redis\"\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Updating  the Variable\n",
+    "\n",
+    "r.set('Phrase', 'What\\'s up, I\\'m using Redis')\n",
+    "storaged_value = r.get('Phrase')\n",
+    "\n",
+    "print(storaged_value)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "id": "90beafb7",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "None\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Deleting the Variable\n",
+    "\n",
+    "r.delete('Phrase')\n",
+    "storaged_value = r.get('Phrase')\n",
+    "\n",
+    "print(storaged_value)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "78780dd3",
+   "metadata": {},
+   "source": [
+    "----\n",
+    "\n",
+    "<h2 style=\"color:blue\">2 - Closing the Connection</h2>"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "65a8a9ec",
+   "metadata": {},
+   "source": [
+    "<p>As far Redis uses <b>Connection Pool</b> (<i>the connectioon is saved in the memory and can be used again over the computer execution</i>) type, yoou don't have to oworry about closing the connectioon. Redis can close it automatically when you shut doown the computer or stop the Redis Service.</p>"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "5308e0af",
+   "metadata": {},
+   "source": [
+    "----"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "5e55df25",
+   "metadata": {},
+   "source": [
+    "<center>\n",
+    "    <img src='thats all.jpg'>\n",
+    "</center>"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "e5c5707a",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.8.8"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}