basic sql ipynb

hamada-emam · Jul 2, 2023 · 890699e · 890699e
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 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "7f38fc3f",
+   "metadata": {},
+   "source": [
+    "* Initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd  \n",
+    "* First appeared 1974  \n",
+    "* Became ANSI Standard 1986 and ISO Standard 1987  \n",
+    "* First available definition article is ANSI-SQL92. The latest is ANSI-SQL2023  \n",
+    "* Declarative language  \n"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "857e8662",