One of the strengths of modern RDBMS is the capability to mix the powerful SQL language with procedural code. SQL is a 4th generation programming language (4GL), and as such, extremely well suited for querying and bulk data manipulation. Its functional-declarative nature allows for it to be optimised in highly efficient ways using cost-based optimisation, … Continue reading Vendor Agnostic, Dynamic Procedural Logic with jOOQ
Tag: triggers
Beware of Hidden PL/SQL to SQL Context Switches
I recently stumbled upon a curious query on a customer's productive Oracle database: SELECT USER FROM SYS.DUAL Two things caught my attention: The query was executed many billions of times per month, accounting for about 0.3% of that system's load. That's 0.3% for something extremely silly! I don't think that customer would ever qualify the … Continue reading Beware of Hidden PL/SQL to SQL Context Switches
jOOQ as a “PL/Java” language
Some people who get in touch with PL/SQL, PL/pgSQL, T-SQL, or any other proprietary procedural language for SQL interaction are probably missing out on a couple of language integration features in the Java world. Most Java APIs see SQL as an external domain-specific language that is "best" dealt with using string concatenation. Such APIs include: … Continue reading jOOQ as a “PL/Java” language