What is the difference between retrieving column flags in MySQL and SQLite databases?
When retrieving column flags in MySQL and SQLite databases, the main difference lies in the syntax used to fetch this information. In MySQL, you can use the `SHOW COLUMNS` query to retrieve column flags, while in SQLite, you can use the `PRAGMA table_info` query. Understanding this distinction is crucial when working with different database systems in PHP applications.
// Retrieve column flags in MySQL database
$query = "SHOW COLUMNS FROM table_name";
$result = mysqli_query($connection, $query);
while($row = mysqli_fetch_assoc($result)) {
echo "Column: " . $row['Field'] . ", Flags: " . $row['Type'] . "<br>";
}
// Retrieve column flags in SQLite database
$query = "PRAGMA table_info(table_name)";
$result = $pdo->query($query);
foreach($result as $row) {
echo "Column: " . $row['name'] . ", Flags: " . $row['type'] . "<br>";
}
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