hibernate basic query

1. Query interface: Query is a query interface specially used by hibernate to execute hql statements

hql ( hibernate query language ) :

Support conditional query, projection query, paging query, join query, group query, sub query, built-in some aggregate functions,

Dynamic binding parameters are supported.

 

1. There are two ways to bind parameters of hql:

Using (? ),  the position of the parameter to use when binding

Use (:  parameter name ), use the parameter name when binding

 

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