jooq

问题 Im currently trying to generate jooq classes from jpa entities instead of using an existing db. Following this page and using jooq version 3.9.1, my current pom's plugin section looks like <profile> <id>jooq-jpa</id> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <plugin> <groupId>org.jooq</groupId> <artifactId>jooq-codegen-maven<

问题 I'm using jooq (v3.11.9) to access a MySQL database that is running in UTC time. I've using generated entities and am using JSR-310 time types. The option I'm using in my config: <javaTimeTypes>true</javaTimeTypes> My understanding is that the MySQL datetime and timestamp types both map to LocalDateTime which makes sense as MySQL doesn't store timezone information with the times. However when I run queries on a machine in a different timezone (in my case EST) the dates are all in my local

问题 Let's say I have a table customer(int id, type varchar, preferences jsonb) . The type can be REGULAR , PREMIUM etc. Based on the column type value the preferences JSON structure will be different. While loading a customer record from database if type=REGULAR I want to convert it into RegularCustomerPreferences object type, and if type=PREMIUM I want to convert it into PremiumCustomerPreferences object type. I have gone through several tutorials on using JOOQ JSON converters/Bindings..but they

问题 Let's say I have a table customer(int id, type varchar, preferences jsonb) . The type can be REGULAR , PREMIUM etc. Based on the column type value the preferences JSON structure will be different. While loading a customer record from database if type=REGULAR I want to convert it into RegularCustomerPreferences object type, and if type=PREMIUM I want to convert it into PremiumCustomerPreferences object type. I have gone through several tutorials on using JOOQ JSON converters/Bindings..but they

问题 I want to implement oracle row level security kind of feature in Java using JOOQ library Here is an example JOOQ query code: Result<Record> result = dslContext.select().from(Employee.EMPLOYEE).fetch(); The code above will generate SQL as below: select [dbo].[Employee].Id,... from [dbo].[Employee] I want to add a where clause to filter data specific to user security as below: select [dbo].[Employee].Id,... from [dbo].[Employee] WHERE [dbo].[Employee].Security IN (1,2) 回答1: Explicit predicates

问题 I have to use toChar() function in JOOQ ? Right now i have used below code TO_CHAR(PaymentDate, 'YYYY-MM-DD') <= TO_CHAR(SYSDATE,'YYYY-MM-DD')"); Which i have to convert into JOOQ . How to use this in JOOQ ? 回答1: Oracle's TO_CHAR() function is not explicitly supported by jOOQ 3.2. I have added a feature request for this: #2832. In the mean time, you will have to resort to plain SQL as documented in the manual. For instance, you could write: // Create reusable fields: Field<String> f = DSL

问题 Is it possible to create a INSERT INTO ... SELECT ... RETURNING statement with jOOQ? If so, how? There is no returning function here: context.insertInto(table, list of fields).select(select statement).returning() If this is indeed absent, is there a smart workaround available? I cannot express my INSERT INTO ... SELECT ... as a INSERT INTO ... VALUES ... . See question jOOQ - multi-field for insertion for more details about the query. 回答1: That combination of INSERT keywords was indeed not

问题 I'm trying to use JOOQ for quering Hive. Hive SQL dialect is pretty clode to MySQL dialect. Right now I've met these problems: Hive supports LIMIT N, it doesn't support LIMIT N OFFSET K. Dummy solution - override select.limit(limit); What are best practices resolving such problems in JOOQ? 回答1: Unfortunately, extending jOOQ to thoroughly support a new SQL dialect isn't very straightforward. jOOQ's API has grown extensive over time, supporting a great set of standard and vendor-specific SQL

问题 This is using JooQ 3.7.0. JooQ allows you to use its API to import data from, for instance, a CSV. Let us take this code as an example of an implementation (in Java 8, as a method reference) of a TransactionalRunnable: // csvPath is a Path to a CSV file private void writeCsv(final Configuration configuration) { try ( final Reader reader = Files.newBufferedReader(csvPath); ) { final Loader<PermethodMetricsRecord> loader = DSL.using(configuration) .loadInto(PERMETHOD_METRICS) .loadCSV(reader)

问题 I have a 'document' table (very original) that I need to dynamically subset at runtime so that my API consumers can't see data that isn't legal to view given some temporal constraints between the application/database. JOOQ created me a nice auto-gen Document class that represents this table. Ideally, I'd like to create an anonymous subclass of Document that actually translates to SELECT document.* FROM document, other_table WHERE document.id = other_table.doc_id AND other_table.foo = 'bar'