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- How to check whether the oracle user is locked
- Method: 1. Use the "select username,account_status,lock_date from dba_users;" command, which can display which users are locked; 2. Use the "select * from dba_users where username='specify user instance name'" command, which can Displays whether the specified user is locked. If "LOCK_DATE" in the result is empty, it means that it is not locked, and if it is not empty, it means that it is locked.
- Oracle 10828 2022-08-02 16:06:41
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- How to query the oracle database instance name
- In Oracle, you can use the "SELECT instance_name FROM v$instance;" command to query the database instance name; "instance_name" represents the database instance. The database instance name is an identifier used to contact the operating system, that is, between the database and the operating system The interaction uses the database instance name.
- Oracle 14217 2022-08-02 15:55:51
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- How to solve error 1053 in oracle
- Solution: 1. Use the "select value from v$diag_info where name ='Diag Alert';" command to obtain the location of the alert log; 2. Use the obtained location to open the "log.xml" file to find the real cause of the error; 3. . Use "Lsnrctl status" to check the monitor status, and restart Oracle after modifying the "host" parameter in the parameter file.
- Oracle 4745 2022-08-02 15:47:03
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- How to use connect by in oracle
- In Oracle, "connect by" is used to find data in attribute structures, and the syntax is "select * from table [start with condition1] connect by [prior] id=parentid"; where "start with condition1" is used to limit the first layer The data, or root node data, is used to find the second-level data based on the content of this part.
- Oracle 7382 2022-08-01 16:27:21
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- What is the difference between plsql and oracle?
- The difference between plsql and oracle: 1. Oracle is a database with a client and a server, while plsql Developer is a third-party tool that serves Oracle; 2. plsql is a SQL script language encapsulated by Oracle, which is an addition to the standard SQL language. has its own function.
- Oracle 6927 2022-08-01 16:21:29
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- Oracle checks table space usage and resolves full instance issues
- This article brings you relevant knowledge about Oracle. The most common problem encountered in daily use of oralce is that the table space of oralce is full, data cannot be written and an error message is reported. Let’s take a look at it together. I hope it will be helpful to everyone. help.
- Oracle 4240 2022-07-29 21:04:18
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- Oracle sequence SEQUENCE analysis
- This article brings you relevant knowledge about Oracle and explains the sequence SEQUENCE in Oracle in detail. The article introduces it in detail through sample code. It has certain reference value for everyone's study or work, and I hope it will be helpful to everyone.
- Oracle 2351 2022-07-28 15:49:58
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- Detailed explanation of Oracle control file and log file management issues
- This article brings you relevant knowledge about Oracle, mainly introducing the management of Oracle control files and log files. The control file is one of the physical files of Oracle. Each Oracle database must have at least one control file, which records The name of the database, the location of the data file and other information are given. Let’s take a look at it. I hope it will be helpful to everyone.
- Oracle 2694 2022-07-26 20:00:04
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- How to recover after accidentally deleting table data in oracle instance parsing delete
- This article brings you relevant knowledge about Oracle. When using Oracle data, you accidentally deleted the data in the table and submitted it. Here is the relevant information on how to recover the table data after Oracle delete accidentally deleted it. ,I hope everyone has to help.
- Oracle 3240 2022-07-25 20:18:22
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- A brief analysis of Oracle architecture
- This article brings you relevant knowledge about Oracle, mainly sorting out issues related to the architecture. Oracle's architecture is generally divided into two parts: Instance (instance) and Database (database). Let's take a look at it together. ,I hope everyone has to help.
- Oracle 1825 2022-07-22 16:51:37
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- Summary of SQLPlus operation usage in Oracle 12c
- This article brings you relevant knowledge about Oracle. It mainly sorts out issues related to the operation and use of SQLPlus in 12c, as well as the differences between SYS and SYSTEM users in Oracle, etc. Let’s take a look at it together. I hope it will be helpful to everyone. help.
- Oracle 2750 2022-07-20 20:42:00
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- Oracle example explains grouped data in detail
- This article brings you relevant knowledge about Oracle. It mainly organizes issues related to grouped data. Grouping allows data to be divided into logical groups so that aggregate calculations can be performed on each group. Let’s take a look at it together. I hope everyone has to help.
- Oracle 2656 2022-07-19 14:07:39
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- Oracle database table space sorting, recycling and release operations
- This article brings you relevant knowledge about Oracle. It mainly introduces issues related to database table space sorting, recycling and release operations, including lowering the high water level of table space, releasing during deletion, etc. Let’s take a look at it together. Take a look, hope it helps everyone.
- Oracle 5716 2022-07-18 20:18:11
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- Completely master Oracle's use of data manipulation functions
- This article brings you relevant knowledge about Oracle, which mainly introduces the related issues of using data manipulation functions. Like almost all other computer languages, SQL supports the use of functions to manipulate data. Functions are usually used to execute data. Operation in order to perform conversion and operation. Let's take a look at it. I hope it will be helpful to everyone.
- Oracle 2208 2022-07-14 17:20:30
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- Completely master Oracle database backup and restore
- This article brings you relevant knowledge about Oracle, which mainly introduces issues related to database backup and restoration. The backup and recovery in Oracle are divided into: logical backup and physical backup. Physical backup is divided into two categories: cold backup and hot backup. Let's take a look at them together. I hope it will be helpful to everyone.
- Oracle 5550 2022-07-12 20:37:47
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