QSqlQuery is a class in C++ that is used for interaction with SQL databases. The function isValid() is used to check whether the query executed successfully.
Code Example:
QSqlQuery query; query.exec("SELECT * FROM customers"); if (query.isValid()) { // query executed successfully } else { // error occurred }
In this example, the isValid() function is called after executing a SQL query to retrieve data from a table named "customers". If the query is successful, the code within the if statement will run, otherwise an error occurred.
The QSqlQuery class is part of the Qt library.
C++ (Cpp) QSqlQuery::isValid - 30 examples found. These are the top rated real world C++ (Cpp) examples of QSqlQuery::isValid extracted from open source projects. You can rate examples to help us improve the quality of examples.