Java Forums at the Big Moose Saloon

Register / Login

Win a copy of Getting started with Java on the Raspberry Pi this week in the Raspberry Pi forum!

programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums

this forum made possible by our volunteer staff, including ...

Marshals:

Campbell Ritchie
Ron McLeod
Paul Clapham
Tim Cooke
Jeanne Boyarsky

Sheriffs:

Rob Spoor
Devaka Cooray
Liutauras Vilda

Saloon Keepers:

Stephan van Hulst
Tim Holloway
Carey Brown
Tim Moores
Mikalai Zaikin

Bartenders:

Piet Souris

Best this year

Object Relational Mapping

When normalizing a table, how do you decide where to move fields that are not dependent to the PK?

9 replies 1

Object Relational Mapping

Question on updating a record using hibernate

9 replies

Object Relational Mapping

Oracle Live Invalid Table Name

11 replies 2

Object Relational Mapping

Hibernate: org.hibernate.StaleObjectStateException:Row was updated or deleted by another transaction

3 replies

Object Relational Mapping

failed to lazily initialize a collection of role could not initialize proxy - no Session

13 replies

Object Relational Mapping

NullPointerException Cannot invoke "java.lang.Integer.intValue()"

17 replies

Object Relational Mapping

What are these SQL words?

8 replies 1

Object Relational Mapping

OneToOne relationship in java

10 replies

Object Relational Mapping

Not able to catch ConstraintViolationException in Hibernate

10 replies

Object Relational Mapping

Converting to hibernate with jpa

5 replies

Object Relational Mapping

Trying to understand the sequence part in Hibernate Mapping

5 replies

Object Relational Mapping

Mapstruct, service, controller - Send nested entity having (many-to-one relation) in the request

3 replies

Object Relational Mapping

Converting database format to java

5 replies

Object Relational Mapping

Oracle Live SQL - Can I add Tables to a schema after the table already exists?

3 replies

Object Relational Mapping

Cannot seem to create the database on BaseX 10.5 properly using an XML file, any help?

5 replies 1

Object Relational Mapping

HQL insert syntax to insert "nested object"

5 replies

Object Relational Mapping

Why does Eclipse not show Hibernate Query Results properties?

3 replies 1

Object Relational Mapping

while migrate toplink to eclipse link without using JPA concept

1 reply

Object Relational Mapping

Save either a new or detached child object using Spring JPA and Hibernate

1 reply

Object Relational Mapping

Can anyone bring an example of a Hibernate session/unit of work in which session cache is useful?

1 reply

More »
Best this month

JDBC and Relational Databases

Local MySQL Workbench don't access MySQL Server on Centos 8.

7 replies

JDBC and Relational Databases

SQL - Extract data within text

5 replies

JDBC and Relational Databases

Query or Table or DB optimization

2 replies

More »
Most recent

JDBC and Relational Databases

PL/SQL Primary key connects to multiple columns

2 years ago 0 replies

JDBC and Relational Databases

PL/SQL count in different tables

2 years ago 5 replies

JDBC and Relational Databases

java.sql.SQLException: PRIMARY KEY must be unique

2 years ago 1 reply

Other Big Data

AcknowledgingMessageListener vs @KafkaListener

2 years ago 0 replies

JDBC and Relational Databases

Multiply columns in different tables

2 years ago 10 replies

Object Relational Mapping

How to Optimize Hibernate buildSessionFactory();

2 years ago 3 replies

JDBC and Relational Databases

Null not showing

2 years ago 3 replies

JDBC and Relational Databases

Primary key values as a result of a Sum

2 years ago 12 replies

JDBC and Relational Databases

MySQL and time zones

2 years ago 10 replies

JDBC and Relational Databases

Help reading data from file into postgreSQL table

2 years ago 5 replies

Object Relational Mapping

Converting Derived JPA query into native query: ORDER BY is NOT working

2 years ago 1 reply

JDBC and Relational Databases

Problem with SQLite

2 years ago 2 replies

Hadoop

What dependency does Apache Spark have on Hadoop?

2 years ago 3 replies

JDBC and Relational Databases

Resultset displays only first row

2 years ago 4 replies

Other Big Data

Is Kafka like an asynchronous queue which gives fast and fault tolerant performance with huge data?

2 years ago 0 replies

Other Big Data

If one cannot query from inside the JSON using DynamoDb then what is the use of storing JSON docs?

2 years ago 3 replies

Object Relational Mapping

Why i can't catch ConstraintViolationException exception ?

2 years ago 9 replies

JDBC and Relational Databases

executeUpdate not updating and no exception thrown

2 years ago 6 replies

JDBC and Relational Databases

multi-level database, like Firebase real time database?

2 years ago 1 reply

Other Big Data

How to query in DynamoDb using a parameter which is a field inside JSON?

2 years ago 0 replies

Other Big Data

If already using AWS in the project for what kind of use case would one choose DynamoDB over MongoDb

2 years ago 0 replies

Other Big Data

Why is RDD called fundamental data structure of Spark when Dataframes and Datasets don't use RDDs

2 years ago 1 reply

Other Big Data

Is Parquet used only as an intermediate format as it looks more machine readable than human readable

2 years ago 10 replies

Hadoop

While planning a Hadoop cluster, how to decide on the optimal number of nodes?

2 years ago 1 reply

Other Big Data

For creating Spark cluster on EC2 without hadoop is there some tool like Cloudera Manager to ease it

2 years ago 0 replies

Hadoop

While creating EMR cluster, when hadoop is selected is it mainly because of Hive

2 years ago 0 replies

JDBC and Relational Databases

Connection Class

2 years ago 3 replies

JDBC and Relational Databases

java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver

2 years ago 40 replies [ 1, 2 ] 3 1
- ◄
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41-80
- 81-120
- 121-160
- 161-200
- 201-240
- 241-280
- 281-320
- 321-360
- 361-400
- 401-440
- 441-480
- 481-520
- 521-560
- 561-600
- 601-640
- 641-680
- 681-720
- 721-760
- 761-800
- 801-840
- 841-880
- 881-920
- 921-960
- 961-1000
- 1001-1040
- 1041-1080
- 1081-1083
- ►
Forums
Databases

Object Relational Mapping 42625

JDBC and Relational Databases 87430

MongoDB 596

Hadoop 1312

Neo4j 136

Riak 1

Big Table 88

Other Big Data 584