Can I use dbadapter for enter the SQL on the fly?

I'm tired of creating so many links of sponsors adapter db for minor variations of sql statements. I was hoping "custom sql" would allow me to enter the SQL on the fly or in charge of parameters to fill in the runtime. However, it seems to me that it runs only the hard-coded statement, that I entered when the partner link was generated. When I added invoke for the service, I noticed he sought an input variable. I assigned a sql statement on the fly before calling, but he did nothing.

Does anyone have a solution? Maybe I'm looking a phatom solution that does not exist.

Thank you!

When you create an SQL statement with the custom sql option, you can use? or # as placeholders for parameters. Each placeholder will have an associated element in the schema that is created for the sql statement. It is my experience that the values passed in via string parameters are treated as string literals, it is as if they are wrapped in single quotes.

I tested it by implementing a custom sql statement: "select? applications. " I spent as the value of the "Name" parameter and received a set of results containing several lines containing 'name '. Meaning of the statement that was executed was "select 'Name' applications '.

So you can get it works one way limited, if you represent the injected apostrophes, but I don't think that you will be able to spend in the entire sql statements. Which is probably a good thing that you may be exposed to sql injection attacks.

Tags: Fusion Middleware

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