select no param

README.md

@@ -13,3 +13,13 @@ on windows search for odbc data sources.
 go to the menu point drivers.
 There should odbc driver 17 for mssql server or something like that
 
+## common pitfalls
+always close connections
+    use with statement (preferred) or try -> finally
+sql injections
+    use parameterized queries
+poor exception handling
+    log errors, use finally blocks, use tx, use AD
+
+
+

running_simple_query.py

@@ -0,0 +1,29 @@
+import pyodbc
+
+print()
+
+try:
+    connection = pyodbc.connect('DRIVER={ODBC Driver 17 for SQL Server};SERVER=.;DATABASE=SampleDB;Trusted_Connection=yes')
+
+    cursor = connection.cursor()
+
+    cursor.execute("select @@version as version")
+
+    while 1:
+        row = cursor.fetchone()
+        if not row:
+            break
+        print(row.version)
+
+    cursor.close()
+    connection.close()
+
+
+except pyodbc.Error as ex:
+    print()
+    print("exception: ",ex)
+    print("closing program")
+    print()
+    exit()
+
+print()

select_no_param_tsql.py

@@ -0,0 +1,28 @@
+import pyodbc
+
+try:
+    connection = pyodbc.connect('DRIVER={ODBC Driver 17 for SQL Server};SERVER=.;DATABASE=SampleDB;Trusted_Connection=yes')
+
+    cursor = connection.cursor()
+
+    cursor.execute("select * from tblCustomers")
+
+    print("[query results...]")
+    while 1:
+        row = cursor.fetchone()
+        if not row:
+            break
+        print(row.id, row.code, row.firstName, row.lastName)
+
+    cursor.close()
+    connection.close()
+
+except pyodbc.Error as ex:
+    print()
+    print("exception: ",ex)
+    cursor.close()
+    connection.close()
+    print()
+    exit()
+
+print()