Oracle condition selection statement and loop statement Oracle Condition Selection statements (IF, CASE), LOOP statements (LOOP, WHILE, and FOR), and sequential control statements (GOTO, NULL ).1. IF condition selection statement1.1 simple condition
Oracle GoldenGate (OGG) diagnostics This document briefly lists the issues that are frequently seen when using Oracle GoldenGate (OGG) and the diagnostic steps and tools. It describes the key file used to find the cause of failure for the OGG Group.
RMAN backup encountered a ORA-600 Error It was normal that the backup encountered an OR-600 error last night. The specific error is: RMAN-03002: failure of backup command at 12/30/2012 04:00:06 ORA-00600: internal error code, arguments: , [0x700
PL/SQL data type 1. Variables and constantsVariable Syntax: variable_name data_type [[not null] [: = VALUE]Note: not null is a non-NULL constraint on variable definitions. It must assign a non-NULL initial value to the variable and cannot be changed
GoldenGate update loss Recently, an interesting but disturbing problem was found on the target database of GoldenGate (22.214.171.124.1 for 10g. This is the case. Some users reported that a table in the target database has two fields (DZFAILFLAG, REMARK)
Inconsistent datatypes: expected-got CLOB error example The tester reported that an SQL statement can be executed normally in one of the test environments, but cannot be executed in another test environment. The error is: ORA-00932: inconsistent
Principles of MongoDB replica set (I) and principles of mongodb Replication References Official Website: www.mongodb.org Chinese community: www.mongoing.com Online Tutorial: https://university.mongodb.com/ Mongodb supports the traditional
Oracle uses AWR's SQL ordered by Gets and SQL ordered by Reads to diagnose problems. awrreads I have read many database reports before, and have encountered two serious performance problems recently. They are very representative, so I recorded them.
Chapter 9 algorithm Interview Questions 27 maximum continuous subset, Chapter 9 subsetChapter 9 algorithm official website-original website Http://www.jiuzhang.com/problem/27/ Question For an integer set S, the subset D of S is defined as a
Paging performance exploration-mysql, paging exploration-mysql Paging technology is very common in development. I used paging technology for the two projects I just joined the company, so I thought about in-depth exploration of paging
Database and database LearningRegister log files Basic PrinciplesThe registration order is strictly in the time order of parallel transaction executionThe log file must be written before the databaseWrite a log file: indicates the modified log
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
Ensure successful installation of oracle11g and oracle11gEnvironment: LSB Version: core-4.0-amd64: core-4.0-noarch: graphics-4.0-amd64: graphics-4.0-noarch: printing-4.0-amd64: printing-4.0-noarch:Distributor ID: RedHatEnterpriseServerDescription:
About SQL data table Stored Procedure table name prefix into dbo code, sqldbo 1. Replace all table names with dbo EXEC sp_MSforeachtable 'exec sp_changeobjectowner ''?'',''dbo'' ' 2. replace all stored procedures with dbo create procedure dbo.
Oracle sys_context () function, oraclesys_context The first parameter is 'userenv', which is fixed. The second parameter is also fixed, but multiple options are fixed. The optional values are as follows: Select sys_context ('userenv',
PostgreSQL contains PM/AM Time Format Conversion to_timestamp, postgresql PostgreSQL help documentation 9.8. Data Type Formatting FunctionsThe specified sqlformatting functionsprovide a powerful set of tools for converting various data types
In the. Net project, the Oracle database configuration is linked through ODAC, And the odacoracle In the. Net project, use ODAC to link Oracle Database configurations I. Development Environment 1. ODAC connection method ODAC directly uses Oracle to
Database and database LearningConcurrent Control Task Correctly schedule concurrent operationsEnsures transaction isolationEnsure Database Consistency Multi-User Database SystemDatabase systems that can be used by multiple users at the same
PowerDesigner15.1 tips (2) -- how to find official resources, powerdesigner15.1 Pd15.1 Tips 2-how to find official resourcesRead first Pd15.1 Tips 1Official Website First, you must know that PowerDesigner is sybase, and sybase is sap.Visit the
[Mybatis] add, delete, modify, and query using Mybatis interface programming method. Original works of Lin bingwen Evankaka. Reprinted please indicate the source http://blog.csdn.net/evankaka In the previous chapter [Mybatis], the introduction to