Revert "Update tutorials/01-DataJoint Basics.ipynb"

This reverts commit 4aa578c.

Author: kushalbakshi

tutorials/01-DataJoint Basics.ipynb

@@ -742,11 +742,13 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "We will introduce four major types of queries used in DataJoint:\n",
-    "* restriction (`&`) and negative restriction (`-`): filter data\n",
-    "* join (`*`): bring fields from different tables together\n",
-    "* projection (`.proj()`): focus on a subset of attributes\n",
-    "* aggregation (`.aggr()`): simple computation of one table against another table"
+    "We will introduce significant types of queries used in DataJoint:\n",
+    "* 1. Restriction (`&`) and negative restriction (`-`): filter the data with certain conditions\n",
+    "* 2. Join (`*`): bring fields from different tables together\n",
+    "* 3. Projection (`.proj()`): focus on a subset of attributes\n",
+    "* 4. Fetch (`.fetch()`): pull the data from the database\n",
+    "* 5. Deletion (`.delete()`): delete entries and their dependencies\n",
+    "* 6. Drop (`.drop()`): drop the table from the schema"
    ]
   },
   {