지출-액수.csv each month Item Sum, R Code

library(RSQLite)
library(DBI)

# Define the path to your SQLite database
db_path <- "/home/jbyungrokim/CSV/CSV.db"

# Connect to the SQLite database
conn <- dbConnect(RSQLite::SQLite(), dbname = db_path)

# Adjust the query to calculate the sum for each item in July 2024
query <- "
SELECT 
    Item, 
    SUM(Pay_Amount) AS Total_Spent
FROM 
    '지출-액수_2024_08_17'
WHERE 
    strftime('%Y-%m', '20' || substr(Date_Transaction, 7, 2) || '-' || substr(Date_Transaction, 1, 2) || '-' || substr(Date_Transaction, 4, 2)) = '2024-03'
GROUP BY 
    Item
ORDER BY 
    Total_Spent DESC;
"

# Execute the query and store the result in a data frame
july_2024_sum <- dbGetQuery(conn, query)

# Print the result
print("Sum of Pay_Amount by Item for March 2024:")
print(july_2024_sum)

# Close the connection to the SQLite database
dbDisconnect(conn)