jooq

问题 I have integrated jooq with spring and for all types of querying to the database (MySQL), I am using JDBC Template of spring. jooq library is used here to generate the sql query to pass to jdbc template. Though my rest of the query works fine until I add limit and/or offset to the query. I am generating query as follows: create.select(Factory.field("table_name")) .from("tables t") .where("t.table_schema LIKE '" + schemaName + "'") .limit(10) .offset(2) .getSQL(); I am getting error as follows

问题 I use the org.jooq.util.DefaultGenerator during the build process to generate jOOQ classes to represent my database schema. While the application runs, the schema is expected to change without the application knowing about it. Such changes may or may not be compatible with the already generated code. How can I detect in runtime whether the generated code is still valid against a certain schema? I'm looking for something like boolean stillValid = new SchemaValidator(existingGeneratedCodePath,

问题 Could someone please guide me on how to use alias in jOOQ. I tried looking into jOOQ documentation but it is not clear. Please provide an example if possible. 回答1: Both org.jooq.Table and org.jooq.Field types implement org.jooq.AliasProvider. This means, that you can call as(String) on them, to create an aliased object. Example: Table<?> aliasedTable = MY_TABLE.as("t"); Field<?> aliasedField = MY_FIELD.as("f"); The examples from the jOOQ manual include: TBook book = T_BOOK.as("b"); TAuthor

问题 I've been dealing with this since yestertay. The thing is I am migrating my queries to jOOQ and I got stuck when I tried to implement this part: select * from table where condition1 and date1 >= date_sub(now(), interval 1 days) Specifically this part of the condition: date_sub(now(), interval 1 days) with jOOQ. So my questions are: Which functions should I use from jOOQ to represent date_sub? How do I implement interval X days with jOOQ? To clarify, the dates are of the type Timestamp Thanks

问题 I'm having some problems generating code using forced types (JOOQ 3.3, Postgres 9.3). Trying to convert sql timestamp to joda DateTime, leads me to compilation errors. My table: CREATE TABLE book ( // [...] date_published timestamp without time zone, // [...] ); and my .xml config: // [...] <customTypes> <customType> <name>java.sql.Timestamp</name> <converter>com.plannow.jooq.converters.DateTimeConverter</converter> </customType> </customTypes> <forcedTypes> <forcedType> <name>java.sql

问题 I've been reading about transactions & jooq but I struggle to see how to implement it in practice. Let's say I provide JOOQ with a custom ConnectionProvider which happens to use a connection pool with autocommit set to false. The implementation is roughly: @Override public Connection acquire() throws DataAccessException { return pool.getConnection(); } @Override public void release(Connection connection) throws DataAccessException { connection.commit(); connection.close(); } How would I go

问题 I now want to use 'like' function with JOOQ to select data including array of string data by not case sensitive and partitial-match. Table schema is: CREATE TABLE favorites ( id int, items varchar(100)[] ); Sample data is: INSERT INTO favorites (id, items) VALUES (1, '{orange, lemon, banana}'); INSERT INTO favorites (id, items) VALUES (2, '{apple, grape}'); To get first data, SQL is like: SELECT id, items FROM favorites WHERE 'orange' = ANY (items); My Goal is to select data by case-sensitive

问题 Let's say I have a book database and I want to check whether the CLRS book has the correct authors. Assuming private static final String CLRS_title = "Introduction to Algorithms"; @Test public void CLRS_is_written_by_CLRS(){ //given SelectConditionStep<Record> query = create .select() .from( ( BOOK.leftOuterJoin(BOOK_AUTHOR).on(BOOK.ID.eq(BOOK_AUTHOR.BOOKID)) ).leftOuterJoin(AUTHOR).on(AUTHOR.ID.eq(BOOK_AUTHOR.AUTHORID)) ) .where(BOOK.TITLE.eq(CLRS_title)) ; //when Result<Record> result =

问题 I build a sql template with named params using jOOQ 3.11.11. select * from table1 where report_date = :bizdate Then I stored the sql template text. For each query, I will replace the param bizdate with user input. how to generate sql from template and param placeholder with JOOQ? the realtime sql like this: select * from table1 where report_date = '20190801' It works well. But there is another question. I want to append an order-by clause and a limit-offset clause to the sql. The order by

问题 I get the sql template like this with jOOQ 3.11.11. DSLContext context = new DefaultDSLContext(conf); Query query = context.select().from("table1").where(DSL.field("report_date").eq(DSL.param("bizdate"))); String sqlTemp = context.renderNamedParams(query); I store the plain sql template. select * from table1 where report_date = :bizdate The param 'bizdate' is decided by realtime query. So. How to generate the real sql select * from table1 where report_date = '20190801' with the stored sql