Database Administrator

Oracle listener cannot be started (TNS-12537, TNS-12560, TNS-00507) An error is reported when the Oracle listener is started, indicating that the connection is interrupted. [Oracle @ localhost ~] $ Lsnrctl start LSNRCTL for Linux: Version 11.2.0.1.0-

Red Hat Enterprise Server 5.8 + Oracle10g (Chinese interface) Installation Red Hat Enterprise 5.8 is installed under VMware workstation10 (Virtual Machine) Create a virtual machine Create a VM and select the configuration type as-typical

Overview of Oracle DB partition features Overview of Partitions Overview: in Oracle databases, partitions can break into very large tables or indexes into small, manageable blocks ), these blocks are called partitions ). each partition must have

MySQL Optimization-view and mysql View Reprinted please indicate the source: http://blog.csdn.net/l1028386804/article/details/46761521 What is the reason for using the view? 1. Security: This is generally done: Create a view and define the data

Oracle BASICS (1), Oracle BASICS ( Oracle Database System is a group of software products with distributed databases as the core provided by Oracle in the United States. It is currently the most popular Client/Server) or one of the databases in the

Data cleansing Note: sorts strings to dates (A Date Field is processed in multiple formats ), Original Works are from the blog of "Deep Blue blog". You are welcome to repost them. You must specify the source when you repost them. Otherwise, you have

Performance case 02 -- sybase connection blocking, 02 sybase Symptom:Recently, a problem was reported on the site. during the approval process, the system often gets stuck. The whole system is useless and the browser access is in the loading state.

Reconstruction of the charging system for vb.net Data Center-Summary (iii) software engineering document 2. vb.net Charging System In the previous article, I wrote the requirement specification to add an IPO diagram. What is an IPO diagram? I have

About the meaning of 'controlfile Checkpointed at scn 'in the trace file after the control file is dumped, The meaning of 'controlfile Checkpointed at scn 'in the trace file after control file dumping Controlfile Checkpointed at scn: 0x0000. 0006c3

Principle of SHA-1 algorithm and programming implementation in Redis source code, redissha-1Guide The SHA-1 algorithm is short for the first generation of "Security Hash algorithm", and is essentially a Hash algorithm. SHA standards are mainly used

After the SQL Server clustered index is rebuilt, the column name of the change column location statistics information remains unchanged, It was originally found by using the clustered index primary key. It was confirmed that it was not a primary key

Possible MySQL server UUID duplication for server, uuidduplication This event occurs during mysql enterprise monitor monitoring. The Topic: Possible MySQL server UUID duplication for server event appears. From the description of this prompt, it

What is the difference between the Barracuda file format and Antelope? barracudaantelope /** There are currently two InnoDB fileformats which are used to group Features with similar restrictions anddependencies. Using an enum allows Switch

(17) SQL injection and SQL mode, and 17sql injection mode Overview   SQL injection is used to insert user data into the actual database operating language by using some external interfaces of the database, so as to intrude into the database and even

Re-build the password file and re-build the passwordDue to the simulated exercise machine, the password file was accidentally deleted, so it had to be rebuilt:SQL> exitFrom Oracle Database 11g Enterprise Edition Release 11.2.0.1.0-ProductionWith the

PL/SQL _ Developer import official documents, pldeveloper Original Works are from the blog of "Deep Blue blog". You are welcome to reprint them. Please note the following source when reprinting them. Otherwise, you will be held legally liable for

Mysql slow query log enabling and storage format, mysql Log enabling Storage Mysql version is mysql5.6.22. The installation environment is Windows 7. 1. Use this query log to find the SQL statement with high efficiency, record it, and monitor

DDL_LOCK_TIMEOUT, ddl_lock_timeout The function of the 11g DDL_LOCK_TIMEOUT parameter is literally the timeout time for DDL to obtain the lock. Let's take a look at the introduction of the official documentation: DDL_LOCK_TIMEOUT Property

Java. SQL. SQLException: Column Index out of range, 0 1. Error description Java. SQL. SQLException: Column Index out of range, 0 2. Error cause try {Class.forName("com.mysql.jdbc.Driver");Connection conn = null;Statement stat = null;ResultSet rs

Sybase ase xa distributed transaction support, sybaseasexa By default, Sybase ASE installation does not support XA.You must obtain the DTM License from Sybase. The SYSAM service is not started by default. SYSAM is a service that manages various