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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
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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
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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
Staff volunteer someone thinks this thread is probably resolved
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
Staff volunteer someone thinks this thread is probably resolved
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
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2 years ago
6 replies
JDBC and Relational Databases
multi-level database, like Firebase real time database?
2 years ago
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Other Big Data
How to query in DynamoDb using a parameter which is a field inside JSON?
2 years ago
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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
Staff volunteer someone thinks this thread is probably resolved
2 years ago
40 replies
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