What is JPA

The Java Persistence API (JPA) is a Java specification for accessing, persisting, and managing data between Java objects / classes and a relational database. JPA was defined as part of the EJB 3.0 specification as a replacement for the EJB 2 CMP Entity Beans specification.

JPA is a specification which specifies how to access, manage and persist information/data between java objects and relational databases. It provides a standard approach for ORM, Object Relational Mapping. Spring Boot provides a seemless integration with JPA.

	Keyword
1	@OneToOne Joins two tables by one to one
2	After If d1 is After d2
3	And The And condition as in Mysql
4	Before If d1 is Before d2
5	Between Get a result between two Dates
6	Containing A value containing a specific string
7	Distinct Select Distinct (unique) from the Database
8	EndingWith A value ends with a specific string
9	Equals If value 1 equals value 2
10	False When a condition is false
11	GreaterThan Compare if greater
12	GreaterThanEqual Compare if equals or greater
13	IgnoreCase Ignore Case
14	In Find a specific value inside a collection
15	Is Compares tow values
16	IsNotNull If the value is not Null
17	IsNull If the value is Null
18	LessThan Compare if less
19	LessThanEqual Compare if equals OR less
20	Like Compare string pattern
21	Not A value not equals a string
22	NotIn Find a specific value which is not inside a collection
23	NotLike If the value do not contain a string pattern
24	Or The OR condition as in Mysql
25	OrderBy Sort query
26	StartingWith A value starts with a specific string
27	True When a condition is true

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