About CURRENT_TIMESTAMP

manual

Date and Time in JPQL and Criteria Queries

Shows how date and time can be used in JPQL queries.... time (a java.sql.Time instance). CURRENT_TIMESTAMP - is evaluated to the current timestamp, i.e. date and time ...

 
api-jpa

currentTimestamp()

Create expression to return current timestamp.(Method of javax.persistence.criteria.CriteriaBuilder)

 
manual

JPA Query Expressions (JPQL / Criteria)

Describes JPA query (JPQL / Criteria API) expressions (literals, operators and functions). Query expressions are the foundations on which JPQL and criteria queries are built. Every query consists of clauses - SELECT, FROM, WHERE, GROUP BY, HAVING and ORDER BY, and each clause consists of JPQL / Criteria query expressions. ...

 
api-jpa

javax.persistence.criteria.CriteriaBuilder

Used to construct criteria queries, compound selections, expressions, predicates, orderings.(Interface of JPA)

 
manual

FROM clause (JPQL / Criteria API)

Explains how to use the FROM clause and JOIN expressions in a JPA/JPQL query.... COALESCE, CONCAT, COUNT, CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP,DELETE, DESC, DISTINCT, ELSE, EMPTY, END, ENTRY, ESCAPE, ...