Oracle

The Oracle tutorial is as follows: Oracle 8x monitors the logon status of sysdba users. Before Oracle 8i, internal users were used to start and shut down databases and create databases. Since the 8i version, Oracle has gradually eliminated internal

The ORACLE tutorial is: how to set up PB7 to connect to Oracle. System Environment: 1. Operating System: Windows 2000 2. Database: Oracle 8i R2 (8.1.6) for NT Enterprise Edition 3. installation path: C: \ ORACLE Access

The ORACLE tutorial is: FAQs about ORACLE database application development and troubleshooting. Hardware Platform: SUN Ultra Enterprise 3000 Operating System: Solaris 2.5 (Simplified Chinese) Disk: 4.2 GB Memory: 256 MB Oracle B version:

The ORACLE tutorial is: Renaming the foreign key of the Oracle system table. The Foreign keys in Oracle tables are the means to ensure the integrity of the system's reference, and the integrity of the Reference refers to the constraints that are

The ORACLE tutorial is about Oracle Index. Index is a common Database object. It is set to good or bad, and is used properly, which greatly affects the performance of Database applications and databases. Although there are a lot of materials about

The ORACLE tutorial is: Oracle performance optimization. We have reason to believe that the adoption of the new kernel version (2.2.16-3 smp) should also improve the performance: OS2: Newer minor version kernel TPC ResultsLoad Time (second)

If the view definition includes conditions (such as the WHERE clause) and its intention is to ensure that the WHERE clause is applied to any INSERT or UPDATE statements that reference the view, you must use with check option to define the view. This

Method 1: X: \ oracle \ ora81 \ bin \ wrap iname = XXX oname = XXX Method 2: 9i uses wrap to encrypt the stored procedure in win2000. For 10 Gb, you can use the encrypted package dbms_ddl.wrap or dbms_ddl.create_wrapped. 11.5.1 use wrap to encrypt

Reading Notes db file scattered read DB, db file sequential read DB, free buffer waits, log buffer space, log file switch, log file syncThe view v $ session_wait can be used to view the current wait events of the system and the information about the

Q: assume that one of my tables contains (a, B, c, d) and (a, B) to form a key combination. Can I write this query in the column value? For example:Copy codeThe Code is as follows:Select a, c, d from mytableWhere (a, B) in (1, 2), (1, 4), (1, 5 ))A:

The ORACLE tutorial is to optimize the Oracle downtime and database recovery. Here we will discuss the steps to minimize Oracle downtime. Various types of downtime-planned or unplanned-always happen. a dba should have the correct backup policy so

The ORACLE tutorial is: Oracle Data Table Partitioning policy. This article describes the table to be partitioned by the hospital information system through statistical analysis. Select the partition key for the table to be partitioned, that is,

The ORACLE tutorial is: Research on the backup and recovery policies of Oracle databases. Abstract restoring lost database files depends largely on the backup policy used. Based on the flexibility of recovery, this article discusses the backup and

The ORACLE tutorial is: Oracle 9i product documentation. I. Enhanced scalabilityOracle9i Real Application Clusters is the next-generation Parallel Server series of Oracle. Oracle9i Real Application Clusters designs fast and efficient shared Cluster

The ORACLE tutorial is: Oracle9i full-text retrieval technology developer network Oracle. Introduction: work in detail. The difference between a master and a cainiao is that the master knows everything and the cainiao knows something. Computer tips

The ORACLE tutorial is: use Oracle Parallel query to exert the power of multiple CPUs. ParametersLet's further look at how the number of CPUs affects these parameters.Parameter fast_start_parallel_rollbackAn exciting aspect of Oracle's parallel

The ORACLE tutorial is: Oracle Database Security Policy Analysis (3 ).Data security policy: Data Generation considerations should be based on the importance of data. If data is not important, the data security policy can be relaxed. However, if

The ORACLE tutorial is: Oracle Database Security Policy Analysis (2 ).SQL * DBA command security: If you do not have an SQL * PLUS application, you can also use SQL * DBA for SQL query permission-related commands that can only be assigned to the

Oracle has the following types of tables:1. heap organized tables ):Common table types are managed in a heap mode. When adding data, the first free space suitable for data size in the segment is used. When deleting data, the space left can be reused

/*There are four functions that support regular expressions in ORACLE:1. REGEXP_LIKE: similar to LIKE2. REGEXP_INSTR: similar to INSTR3, REGEXP_SUBSTR: similar to SUBSTR4. REGEXP_REPLACE: similar to REPLACEThey are used in the same way as Oracle SQL