I have a DATETIME column in a MySQL database. I use ResultSet metadata to retrieve the column type and it returns TIMESTAMP which is incorrect. How can I get the correct java.sql.SQLType value for this column? I will try to…
I want to use JDBC for preparedStatement in Java for inserting data into a PostgreSQL database. I have the following DDL CREATE SEQUENCE serial_no; CREATE TABLE distributors ( did DECIMAL(3) DEFAULT NEXTVAL('serial_no'), dname VARCHAR(40) DEFAULT 'lusofilms' ); I want to…
Quite frequently, I'd like to retrieve only the first N rows from a query, but I don't know in advance what N will be. For example: try(var stream = sql.selectFrom(JOB) .where(JOB.EXECUTE_AFTER.le(clock.instant())) .orderBy(JOB.PRIORITY.asc()) .forUpdate() .skipLocked() .fetchSize(100) .fetchLazy()) { // Now run…
I am trying to read some data from a sql view. I am pyodbc driver for that, I found out that pyodbc cannot read views. Is there is a way to read sql view in a python function? Here is…
I am currently trying to find a unique solution for running my project locally and remotely on a CI-pipeline. On git I got everything working by setting the bean dataSource url of the applicationContext.xml as shown in the following snipped:…
Update: I have removed the duplicate connections, which reduced the time down to 18 seconds. Other improvements would be appreciated as well! I feel like I have some massive oversight that is causing it to take exponentially longer than it…
Environment: Hardware: 8Core, 32GB as a guest OS in VMWare 1TB for data in VSAN Software OS: CentOS 7 64bit JDK version: 11.0.7 PostgreSQL version: 13 Timescaledb version: 2.3.0 PostgreSQL JDBC version: 42.2.18 I have already run timescaledb-tune to optimize…
I'm trying to connect to Postgres using JDBC. The database is running in the Docker container. I am using Windows Docker Desktop (Windows 10 pro) with WSL2. I launch the Docker container using docker-compose. Here is the content of docker-compose:…
I'm trying to load the Wikipedia dumps (for example, this one), which are a series of .sql scripts, into an SQLite database via the org.xerial sqlite-jdbc connector and MyBatis, but it appears to be failing on some /* ... */…
I'm really puzzled by the following query: explain analyze (with z as ( select 1 as attraction ,1 as nd_attraction , n.fc from (select pe_id,zo_id,co_id,value_num as dt from rtpezocoav x --use view?? where pe_id = 405 and ad_id = 4…