How to use placeholders in PostgreSQL? : r PostgreSQL - Reddit How to use placeholders in PostgreSQL? In SQL systems other than Postgres, such as MySQL for instance, prepared statements can use question marks as a placeholder for data in prepared statements I am not sure how to create placeholders in Postgres
MySql NULL values : r golang - Reddit placeholder := "VALUES (" for i, c := range columns { if i == 0 { *query += c placeholder += "?" } else { *query += ", "+c placeholder += ", ?" } } placeholder += ")" *query += ") " + placeholder } convert []string to []interface{} func string2interface(s []string) []interface{} { i := make([]interface{}, len(s)) for k, v := range s {
What is the reason of this question mark ? in JDBC or SQL? The question mark is a placeholder in your SQL statement that is given a real value when the statement is executed They're known as query parameters As others have said, they're a way to prevent SQL injection, but also they make your code much more readable in any case, so if you're putting SQL into any programming language, use parameters
Help! Paginated report based on PowerBI dataset - Reddit I know I"m overlooking something simple so I have a simple table report - to use a power bi dataset, you copy the dax code from a simple table visual and paste into the advanced query editor in Power BI report builder Fine Works great But, I cannot add any parameters that actually work Ie: a simple list based on one of the fields in my report that just asks the user to select from a
Direct query column issue : r PowerBI - Reddit Direct Query you want to manipulate the data in the database or whatever your source is (as described by the other commenter) You want to pretty much create a view or something that has most of what you want, how you want it and then just pull that into Power BI
Python SQLite3 Placeholders : r cs50 - Reddit Technically, you have the right amount, but you're missing parentheses and commas, and it's broken up throughout your query which I suspect is confusing SQL Just like the values are separated with commas and surrounded in parentheses, so too must the placeholders Otherwise, SQL won't know how to interpret them and match them up