What potential issues can arise when using the LIKE operator in a SQL query for PLZ search?

When using the LIKE operator in a SQL query for PLZ search, one potential issue that can arise is that it may not be performant, especially when dealing with large datasets. To solve this issue, you can consider using full-text search or indexing the column that you are searching on. This can help improve the query performance and make the search more efficient. 

// Example PHP code snippet implementing full-text search for PLZ search
$searchTerm = $_POST['search_term'];

// Assuming $conn is the database connection
$sql = "SELECT * FROM table_name WHERE MATCH(plz_column) AGAINST ('$searchTerm' IN NATURAL LANGUAGE MODE)";
$result = mysqli_query($conn, $sql);

// Fetch and display results
while ($row = mysqli_fetch_assoc($result)) {
    echo $row['column_name'];
}

Keywords

LIKE operator SQL query PLZ search wildcard characters SQL injection

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