Blog: jooq (Lukas Eder)

218 blogs updated: 44 min. ago
Simulating Latency with SQL / JDBC
I've run across a fun little trick to simulate latency in your development environments when testing some SQL queries. Possible use-cases in...
15-02-2021 10:54:00 jooq (Lukas Eder) Advanced
Translating Stored Procedures Between Dialects
In the past years, we've invested a lot of effort into improving our procedural language capabilities in jOOQ. What started with a simple in...
10-02-2021 14:23:35 jooq (Lukas Eder) Advanced
Implementing a generic REDUCE aggregate function with SQL
So, @rotnroll666 nerd sniped me again. Apparently, the Neo4j Cypher query language supports arbitrary reductions, just like any functional c...
08-02-2021 18:51:08 jooq (Lukas Eder) Advanced
jOOQ Internals: Pushing up SQL fragments
Over the past 13 years, jOOQ has accrued quite some internal features, which you, the user, are not exposed to. One very interesting feature...
04-02-2021 14:49:15 jooq (Lukas Eder) Advanced
Automatically Transform Oracle Style Implicit Joins to ANSI JOIN using jOOQ
While jOOQ is mostly being used as an internal SQL DSL for embedded, dynamic SQL in Java, where it offers the best solution on the market, j...
17-11-2020 21:21:51 jooq (Lukas Eder) Advanced
jOOQ 3.14 Released With SQL/XML and SQL/JSON Support
jOOQ 3.14 has been released with support for SQL/XML, SQL/JSON, Kotlin code generation, embeddable types, and domain types, synthetic constr...
20-10-2020 14:29:19 jooq (Lukas Eder) Advanced
Using jOOQ 3.14 Synthetic Foreign Keys to Write Implicit Joins on Views
jOOQ has supported one of JPQL's most cool features for a while now: implicit joins. Using jOOQ, you can navigate your to-one relationships ...
14-10-2020 02:09:27 jooq (Lukas Eder) Advanced
Nesting Collections With jOOQ 3.14's SQL/XML or SQL/JSON support
One of the main features of ORMs is M as in Mapping. Libraries like jOOQ help auto-mapping flat or nested database records onto Java classes...
09-10-2020 17:59:47 jooq (Lukas Eder) Advanced
Having "constant" columns in foreign keys
I was asked a very interesting question on Twitter just now: @lukaseder quick q: in pg can I have a composite foreign key where one value is...
10-09-2020 10:26:11 jooq (Lukas Eder) Advanced
Use NATURAL FULL JOIN to compare two tables in SQL
There are a few ways to compare two similar tables in SQL. Assuming PostgreSQL syntax, we might have this schema: It is now possible to use ...
05-08-2020 14:51:28 jooq (Lukas Eder) Advanced

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