From 01dc4dfda56a97ad000fcf07ee5d5f1c05cb50d6 Mon Sep 17 00:00:00 2001
From: parithi029 <114157603+parithi029@users.noreply.github.com>
Date: Sat, 1 Nov 2025 23:56:22 +0530
Subject: [PATCH 1/2] Create 1

---
 .../1                                                            | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 Build a Python program to use sqlite3 to store and query records./1

diff --git a/Build a Python program to use sqlite3 to store and query records./1 b/Build a Python program to use sqlite3 to store and query records./1
new file mode 100644
index 00000000..8b137891
--- /dev/null
+++ b/Build a Python program to use sqlite3 to store and query records./1	
@@ -0,0 +1 @@
+

From 5b40cc056e2d157bcb88aea1a1a32d0d0dfa678f Mon Sep 17 00:00:00 2001
From: parithi029 <114157603+parithi029@users.noreply.github.com>
Date: Sat, 1 Nov 2025 23:57:40 +0530
Subject: [PATCH 2/2] Add files via upload

---
 .../employees.db                              | Bin 0 -> 12288 bytes
 .../program.py                                |  56 ++++++++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100644 Build a Python program to use sqlite3 to store and query records./employees.db
 create mode 100644 Build a Python program to use sqlite3 to store and query records./program.py

diff --git a/Build a Python program to use sqlite3 to store and query records./employees.db b/Build a Python program to use sqlite3 to store and query records./employees.db
new file mode 100644
index 0000000000000000000000000000000000000000..274f71015e33ca2e35cc73e225dcc416857f5352
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diff --git a/Build a Python program to use sqlite3 to store and query records./program.py b/Build a Python program to use sqlite3 to store and query records./program.py
new file mode 100644
index 00000000..bc48f94b
--- /dev/null
+++ b/Build a Python program to use sqlite3 to store and query records./program.py	
@@ -0,0 +1,56 @@
+import sqlite3
+import pandas as pd
+import os
+
+DB_PATH = "employees.db" 
+
+if os.path.exists(DB_PATH):
+    os.remove(DB_PATH)
+
+conn = sqlite3.connect(DB_PATH)
+cur = conn.cursor()
+
+cur.execute("""
+CREATE TABLE employees (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL,
+    role TEXT NOT NULL,
+    salary REAL NOT NULL,
+    hired DATE DEFAULT (DATE('now'))
+)
+""")
+
+employees = [
+    ("Asha", "Engineer", 45000.0),
+    ("Ravi", "Data Analyst", 38000.0),
+    ("Maya", "Designer", 32000.0),
+    ("Karan", "Engineer", 47000.0),
+    ("Leela", "HR", 30000.0)
+]
+cur.executemany("INSERT INTO employees (name, role, salary) VALUES (?, ?, ?)", employees)
+conn.commit()
+
+print(pd.read_sql_query("SELECT * FROM employees", conn))
+
+threshold = 35000.0
+print(pd.read_sql_query("SELECT id, name, role, salary FROM employees WHERE salary > ?", conn, params=(threshold,)))
+
+cur.execute("UPDATE employees SET salary = salary * 1.10 WHERE name = ?", ("Maya",))
+conn.commit()
+print(pd.read_sql_query("SELECT * FROM employees WHERE name = 'Maya'", conn))
+
+cur.execute("DELETE FROM employees WHERE name = ?", ("Leela",))
+conn.commit()
+print(pd.read_sql_query("SELECT * FROM employees", conn))
+
+try:
+    conn.execute("BEGIN")
+    conn.execute("INSERT INTO employees (name, role, salary) VALUES (?, ?, ?)", ("Sam", "Intern", 15000))
+    conn.execute("INSERT INTO nonexistent (x) VALUES (1)")
+    conn.commit()
+except Exception as e:
+    conn.rollback()
+    print("Transaction failed and rolled back. Exception:", e)
+
+print(pd.read_sql_query("SELECT * FROM employees", conn))
+conn.close()