I hope that the poll is made in an understandable way. 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. 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 { 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. I'm looping and with each loop i manipulate data and then save it to different csv file Now i'm trying to do the same with sqlite I have many tables but for sake of simplicity, lets say i have 3 tables Why are the names john/jane doe used as placeholder names instead of any other name?
Constructive collaboration and learning about exploits, industry standards, grey and white hat hacking, new hardware and software hacking technology, sharing ideas and suggestions for small business and personal security. But, i cannot add any parameters that actually work A simple list based on one of the fields in my report that just asks the user to select from a. In postgres, the value placeholder is $#, which one is recommend when the value is the same, reusing the value placeholder or not The only way to safely interpolate values into sql queries is to use the Do not use anything else (it’s dangerous, as discussed in other comments).
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