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Updated Data Base Connector #1

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Updated Data Base Connector #1

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23 changes: 8 additions & 15 deletions Database_python_connection.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,22 +2,19 @@
import os
from sqlite3 import Error

# Used to create connection with Database file
def create_connection(Education):
conn = None
try:
conn = sqlite3.connect(Education)
except Error as e:
print(e)

return conn

# col_name
# Used to Select the Column Names from table
def select_task(conn,table_name,col_name,where_clause):
cur = conn.cursor()
#new string
str_query = ""

str_query = str_query + "SELECT "
str_query = "SELECT "
print("After adding select keyword ",str_query)

#string for all the relevent columns of the table:
Expand Down Expand Up @@ -55,22 +52,17 @@ def delete_task(conn,table_name,where_clause):
str_query = str_query + "DELETE FROM " + table_name + " WHERE "+ where_clause
else:
str_query = str_query + "DELETE FROM " + table_name

str_query="Select * FROM "+table_name

print( " Now Delete Query is ",str_query)

cur.execute(str_query)

rows = cur.fetchall()

for row in rows:
print(row)

# update tb set c1 = c1_val , c2 = c2_val WHERE c_name = c_name_value
def update_task(conn,table_name,col_name,data,where_clause):
cur = conn.cursor()
str_query = ""
str_query = str_query + "update "+ table_name+ " set "
str_query = "update "+ table_name+ " set "

for i in range(len(col_name)):
str_query = str_query + col_name[i] + " = '"+ data[i] + "'"
Expand All @@ -79,7 +71,8 @@ def update_task(conn,table_name,col_name,data,where_clause):

if where_clause != "":
str_query = str_query + " WHERE "+ where_clause
#str = "update Subject set branch='computer science' where subject_id = 3"

#str = "update Subject set branch='computer science' where subject_id = 3"
print( " Now Update Query is ",str_query)

cur.execute(str_query)
Expand Down Expand Up @@ -115,4 +108,4 @@ def main():


if __name__ == '__main__':
main()
main()