Oracle

There are multiple ORACLE Data Types in ORACLE databases. We will provide a detailed description of these ORACLE data types. We hope you will have a better understanding of ORACLE data types. Common ORACLE data types include: CHAR fixed-length

An Oracle Temporary table is a special type of table. An Oracle Temporary table is used to save intermediate result sets during transactions or sessions. The following describes the knowledge of temporary Oracle tables for your reference. The data

How can I check the usage or size of a tablespace in Oracle? The following describes how to use Oracle to view tablespaces. If you are interested, take a look. Oracle View table space usage Select sum (bytes)/(1024*1024) as free_space,

The connect role in Oracle 10g has changed, and the next section describes the changes in the permissions of the oracle connect role in detail, hoping to help you. A few days ago, I created an oracle user and granted the oracle connect role directly.

The following describes how to set the encoding for ORACLE databases. If you have encountered similar problems in ORACLE Database settings, take a look. ORACLE Database encoding: $ sqlplus / as sysdba    SQL> SHUTDOWN IMMEDIATE;    Database 

Oracle multi-column subquery is a query method in oracle databases. The following describes the implementation of oracle multi-column subquery in detail, hoping to help you. Multi-column subquery: Oracle subqueries generally return a single column.

ORACLE stored procedures are an important part of ORACLE databases. The following describes the syntax for creating ORACLE stored procedures and related precautions for your reference. ORACLE stored procedure creation Syntax: Create or replace

The following describes how to resizes Oracle log files online. If you have encountered similar problems in Oracle log files, take a look. 1. create two new log groupsAlter database add logfile group 4 ('d: \ ORACLE \ ORADATA \ ORADB \ REDO04_1.LOG '

How should I write statements for Oracle to query user tablespace? The following describes in detail the statements used to query user tablespace in Oracle. If you are interested in this, take a look. The following describes how to query user

The methods for deleting all objects under an Oracle user may not be available to everyone. The following describes two common methods for deleting all objects under an Oracle user, we hope this will help you learn how to delete Oracle users. Method

Identifying Oracle statements that occupy a large amount of resources can help us solve SQL statement execution efficiency problems. The following describes how to identify Oracle statements that occupy a large amount of resources for your reference.

Oracle file read/write operations are familiar to everyone. The following describes the Oracle file bfilename instance for reading and writing, hoping to help you learn how to read and write Oracle files. Create directory allows us to flexibly read

ORACLE password policy is very important. The following describes the ORACLE Password Policy Verification Program in detail. If you are interested in ORACLE password policy, take a look. Password string requirements: -- Check if the password is same

What should I do if there are unnecessary services in oracle service items? The following describes how to delete a service that is not used in oracle service items. We hope this will help you learn about oracle service items. Management -->

Oracle tablespace management is still unfamiliar to many new users who are new to oracle databases. The following describes how to manage tablespaces in oracle for your reference. -- View table space usageSelect upper (F. TABLESPACE_NAME)

Introduction: ORACLE DatabaseIt contains several data files and data files to store database data, including tables and indexes. For many beginners who do not know much about Oracle databases, the next step is to start learning from the basics.I.

Guidance:When the Database Administrator does not know how to partition the table, but it is necessary to partition, you can use Hash partitions. However, I need to note that hash partitioning has a major limitation. When using hash partitions, only

Q: How can I port the system without installing the Oracle client? A: follow these steps: 1. Copy the ORACLE and HMIS folders: If the original ORANT and HMIS folders are in the C: disk, the new system will be copied to the C: disk; the original

Introduction: Oracle DatabaseAdministrators must always pay close attention to potential database problems that may negatively affect the availability or performance of each system they manage. Usually, you can monitor the database

Introduction: triggerIt is a special stored procedure. Trigger execution is not triggered by a program or manually, but by an event,Oracle DatabaseIt is a database system that everyone is very familiar with. What is the syntax of Oracle triggers?