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the difference between Oracle user and schema (original) Blog Categories:Oracle Day-to-day Management Overview The schema and user definitions are as follows A schema is a collection of the database objects (used by a user.).Schema objects are the

Principles and Application of pt-online-schema-change, ptonlinechangeschema If it is reprinted, please indicate the source of the blog: www.cnblogs.com/xinysu/. The copyright belongs to xiaoradish in the blog garden. Thank you for your

In Oracle, a user is a schema, tables are built in the schema, or they can be understood to have different tables for each user. When a user wants to access another user, that is, a table of another schema,can be accessed in the form of

Keep your servers and data confidential, and SQL Server has everything you need to prepare for the current complex attacks. But before you can effectively use these security features, you need to understand the threats you face and some basic

Performance-schema was first introduced in MYSQL5.5, but now more metrics are added to performance-Schema in 5.6 and 5.7, and more statistics are available, more and more ORACLE-AWR statistics to catch up, really DBA kids shoes performance diagnosis

MySQL Performance-Schema (1) configuration table, performanceschema Performance-schema was first introduced in MYSQL 5.5, but now more metrics are added to performance-Schema in MYSQL 5.6 and 5.7, and more statistics are available, more and more

schema design of database table with tree-shaped structure In the process of programming, we often use the tree structure to characterize the relationship of some data, such as Enterprise's subordinate departments, column structure, commodity

Performance-schema first appeared in MySQL 5.5, and now 5.6,5.7 Performance-schema added more monitoring items, more statistical information, more and more oracle-awr statistical information Bright, is the DBA children's shoes for performance

We always have to live in a certain framework. The composition of the Framework comes from law, morality, and potential rules. Most people only want ansheng to live. After all, there are a few desperate people. Some people break the framework and

Create/drop/grant/revoke Roles and PrivilegesHive Default authorization-legacy Mode has information about these DDL statements: CREATE ROLE GRANT ROLE REVOKE ROLE GRANT Privilege_type REVOKE Privilege_type DROP ROLE