tns lookup

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Causes Ora-12560:tns: Three reasons for protocol adapter errors

Create a new database in Oracle, delete it today and then log on Sql*plus (because the Oracle_sid value in the registry is null when the database is deleted), Ora-12560:tns: Protocol adapter error. Ora-12560:tns: Workaround for protocol Adapter

Reading notes-"Hacker Exposure" (2/8)

Chapter III Enumerationenumeration : For known weaknesses, the identified hosts and services are more fully explored.The key difference between information-gathering techniques and enumeration techniques is the extent to which attackers invade. The

Analysis on the Application of Data Sources in JDBC

   Introduction As we all know, JDBC (Java database connection) is an important part of Java 2 Enterprise Edition. It is an API Based on the SQL layer. By embedding SQL statements into JDBC interfaces, you can use Java programs to perform almost

Application of Data Sources in JDBC

Application of Data Sources in JDBC (1) IntroductionAs we all know, JDBC (Java database connection) is an important part of Java 2 Enterprise Edition. It is based on the SQL LayerAPI. By embedding SQL statements into JDBC interfaces, you can use

The history command in the Bash Shell

# # # Bash in the History command in the Shell----------In daily operations, we often use the history command to check the historical commands executed on this machine, or at what time the commands are executed. The history command does not show the

Use data source "reprint" via Jndi

Brief introductionAs we all know, JDBC (Java database connection) is an important part of Java 2 Enterprise Edition. It is a SQL-layer-based API. By embedding SQL statements in the JDBC interface approach, users can perform almost any database

Troubleshooting Oracle Installation ORA-12154 and ORA-12169 issues

July 8, 2014, I regained Oracle, the computer was previously installed Oracle10, because to import the 11 version of the DMP table file, it is suggested that the version of the low Oracle can not import, only the version of the Oracle import version

SQL injection quick query table (lower) and Oracle injection quick query table

SQL injection quick query table (lower) and Oracle injection quick query table0x00 directory blind note about blind note instances in actual blind note latency blind note waitfor delay [time] (S) instance BENCHMARK () (M) instance pg_sleep (seconds)

Summary of Oracle Adi errors and solutions-from Metalink

1. Cannot connect to the Database. "invalid username or password" Following are the probable causes for this error message: A. the ADI sign on (security) has not been set up correctly (check this onlyIf this is a fresh install). Check the 3 cones

Some basic knowledge about Oracle11gRAC

Oracle11gr2 also provides a new feature called RACOneNode. Oracle finds that the deployment of some RAC is purely for high availability, and more users are using virtualization. Oracle 11g r2 also provides a new feature called RAC One Node. Oracle

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