Sql update query

sql update query –update query example UPDATE table_name SET column1 = value1, column2 = value2, … WHERE condition; sql update from select UPDATE Table_A SET Table_A.col1 = Table_B.col1, Table_A.col2 = Table_B.col2 FROM Some_Table AS Table_A INNER JOIN Other_Table AS Table_B ON Table_A.id = Table_B.id WHERE Table_A.col3 = ‘cool’ sql update record SQL> UPDATE CUSTOMERS SET […]

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Sql injection attack

sql injection attack $value = “your value here”; try { $pdo = new PDO($dsn, $username, $password, $>drivers); } catch (\PDOException $e) { echo ‘Connection Failed: ‘ . $e->getMessage(); } $sql = “INSERT INTO `my_db` SET `field` = ? “; $stmt = $this->pdo->prepare($sql); $stmt->bindValue(1, $value, PDO::PARAM_STR); $stmt->execute(); $stmt = null; sql injection ” or “”=” mitigation […]

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Sql from jupyter notebooks

sql from jupyter notebooks # import packages import pandas as pd import sqlite3 # connect database and create cursor conn = sqlite3.connect(‘data.sqlite’) cur = conn.cursor() # executing the query cur.execute(“””SELECT * FROM employees LIMIT 5;”””) # creating a dataframe object df = pd.DataFrame(cur.fetchall()) # find database attributes from cursor.description to use as column names cur.description […]

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Lua value

lua value — Nil (no value) — Number => Example: 1234567890 — String => Example: “random text” — Function — Userdata — Boolean (true/fanse) — Table — Thread

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