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jdbc

Why decrease the wait_timeout configuration parameter in MySQL?

by IT Nursery

Question I’m working on an application that uses a connection pool in Apache Tomcat to communicate with MySQL. I was wondering why would … Read more

Tags jdbc, MySQL, waits

Proxy authentication for PostgeSQL

by IT Nursery

The following seems likely to be a fairly common situation, but I haven’t seen any solutions. I have a PostgreSQL database containing views … Read more

Tags authentication, connections, jdbc, postgresql

Replacing a large object in PostgreSQL

by IT Nursery

What should one do when one wishes to replace a large object with a new large object. An example would be to update … Read more

Tags blob, jdbc, postgresql

Retrieving data from inner join using LIMIT and OFFSET

by IT Nursery

These are my two tables: table1 qid[PK] |gid[PK] |abcd | xyz | date —————+———+———+——+———— 00001 | qwe | 54 | a | 1994-11-29 … Read more

Tags jdbc, join, postgresql

Oracle 11g delete by unique key slow

by IT Nursery

We have been plagued by a deadlock issue for quite some time that relates to deletes and inserts on the same table. It … Read more

Tags jdbc, oracle

SET ROLE via parameterized query

by IT Nursery

In the very helpful response I received to a previous question, I am trying to write some JDBC code that first sets the … Read more

Tags jdbc, parameter, postgresql, sql-injection

Access operator added by extension inside a schema

by IT Nursery

I am writing an application that uses postgres. Each microservice uses its own schema inside the database. So connect to the database schema … Read more

Tags jdbc, postgresql, postgresql-9.4

Keep H2 in-memory database between connections

by IT Nursery

I create and use a H2 database in-memory (no writing to storage) for demos and quick tests using this code in Java: Connection … Read more

Tags connections, h2, in-memory-database, java, jdbc

Configuring sqlnet.ora and tnsnames.ora on the client side

by IT Nursery

I have an application server talking to an Oracle database, using the Oracle instant client. We are troubleshooting a specific bug, and it … Read more

Tags jdbc, oracle

Measure Performance for INSERT, UPDATE and DELETE commands on DB2

by IT Nursery

I have a DB2 database with a table for daily transactions, which is cleared to a history table at the end of the … Read more

Tags db2, insert, iseries, jdbc, performance
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