Add python file

Author: HolzerSoahita

Connection.py

@@ -0,0 +1,15 @@
+import mysql.connector
+
+mydb = mysql.connector.connect(
+
+    host="localhost",
+    user="root",
+    passwd=""
+)
+
+print(mydb)
+
+
+
+
+

Create_Database_And-Tables.py

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+import mysql.connector
+
+mydb = mysql.connector.connect(
+
+    host="localhost",
+    user="root",
+    passwd="",
+)
+
+mycursor = mydb.cursor()
+
+mycursor.execute("CREATE DATABASE testdb")
+
+mycursor.execute("SHOW DATABASES")
+
+for db in mycursor:
+    print(db)
+
+mycursor.execute("CREATE TABLE students (name VARCHAR(255),age INTEGER(10))")
+
+mycursor.execute("SHOW TABLES")
+
+for tb in mycursor:
+    print(tb)

Populating_Database.py

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+import mysql.connector
+
+mydb = mysql.connector.connect(
+
+    host="localhost",
+    user="root",
+    passwd="",
+    database="testdb"
+)
+
+mycursor = mydb.cursor()
+
+
+sqlFormula = "INSERT INTO students (name,age) VALUES (%s,%s)"
+student1 = ("Rachel", 22)
+students = [("Bob", 12),
+            ("Amanda", 32),
+            ("Jacob", 21),
+            ("Avi", 28),
+            ("Michel", 17), ]
+
+mycursor.execute(sqlFormula, student1)
+
+mycursor.executemany(sqlFormula, students)
+
+# To make sure  of changing
+mydb.commit()

Selecting_And_Getting_Data.py

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+import mysql.connector
+
+mydb = mysql.connector.connect(
+
+    host="localhost",
+    user="root",
+    passwd="",
+    database="testdb"
+)
+
+mycursor = mydb.cursor()
+
+mycursor.execute("SELECT * FROM students")
+
+myresult = mycursor.fetchall()
+
+for row in myresult:
+    print(row)
+
+mycursor.execute("SELECT age FROM students")
+
+myresult = mycursor.fetchone()
+
+for row in myresult:
+    print(myresult)
+

Update.py

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+import mysql.connector
+
+mydb = mysql.connector.connect(
+    host="localhost",
+    user="root",
+    passwd="",
+    database="testdb"
+)
+
+mycursor = mydb.cursor()
+
+sql = "UPDATE students SET age = 13 WHERE name = 'Bob' "
+
+mycursor.execute(sql)
+
+mydb.commit()

Where.py

@@ -0,0 +1,20 @@
+import mysql.connector
+
+mydb = mysql.connector.connect(
+
+    host="localhost",
+    user="root",
+    passwd="",
+    database="testdb"
+)
+
+mycursor = mydb.cursor()
+
+sql = "SELECT * FROM students WHERE name = %s"
+
+mycursor.execute(sql, ("Bob",))
+
+myresult = mycursor.fetchall()
+
+for result in myresult:
+    print(result)