Dynamically building SQL statements
In any nontrivial application using a SQL database, you will have to build SQL statements dynamically. This becomes necessary for cases such as the following:
- Using flexible search criteria that may change based on user input or requests
- Optionally joining multiple tables based on requested fields
- Selectively updating a subset of columns
- Inserting a variable number of columns
This section shows several common methods to build SQL statements for different use cases.
Tip
There are many open source query builder packages. You might want to explore those packages before writing your own.
