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Prop is a super properties, contains a lot of jdk missing things: utf-8 support, macros, partitions, profiles, full configuration and so on.Properties are stored in one or more *.props files, and it is open and supports multiple types of resources.

Our usual DML, DDL, and DCL statements are sql*plus statements that, when executed, can be stored in an area of memory called SQL Buffer, and can only hold a recently executed SQL statement, and we can save SQL in SQL buffer Statements are modified

Oracle Oracle's Sql*plus is a client tool that interacts with Oracle. In Sql*plus, you can run the Sql*plus command and the Sql*plus statement. Our usual DML, DDL, and DCL statements are sql*plus statements that, when executed, can be stored in an

Optimizer for PL/SQL statement execution in Oracle databases, including cost-based optimizer (CBO) and rule-based optimizer (RBO ). The RBO optimization method depends on a set of strict syntax rules, as long as the statements written according to

The optimizer for Pl/sql statement execution of an Oracle database has a cost-based optimizer (CBO) and a rule-based optimizer (RBO). The Rbo optimization method relies on a strict set of grammatical rules, and the statement written by rules,