Oracle

The Setresulttransformer method of NHibernate will appear under Oracle "Could not find a setter-for-property" error, which is a bug that NHibernate uses under Oracle. I can fix it myself for this bug. Download the NHibernate source code, the

1. View the SGA and PGA650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/44/EF/wKioL1PjM8qgspO8AACxtSBsIFY007.jpg "style=" float: none; "title=" 02.png "alt=" Wkiol1pjm8qgspo8aacxtsbsify007.jpg "/>650) this.width=650; "src=" http://s3.51cto.

The first project was finished, delivered to the test, tested, encountered a bunch of problems, of course not procedural, but environmental!This project was developed with EF 5 + MVC5 + Oracle 11.Drive is oracle.manageddataaccess, local win7/8.1 run

Case: Create a user software and assign permissions, you can have software log in to the database, create tables, manipulate tables that you create, reclaim roles, and finally delete users.1. Create software user, password systemCreate user software

When ordering by using order BY, the following occurs:The impression of Chinese sorting should be by default in alphabetical order, why "Xin" will be ranked in the "middle" of the back? Suppose the order by is not based on the ASCII code of the

See deterministic many times, have been very puzzled, today did an experiment. We cheat Oracle to say it is a deterministic function, which is called only once in SQL. If you do not use deterministic, you can see that the values are different. after

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How to use oracle trunc () function, oracletrunc Oracle trunc () function is one of the most common functions. The following describes the usage of oracle trunc () function for your reference () functions have a deeper understanding. 1. TRUNC (for

How to easily view alarm log errors in Oracle, and view alarm logs in oracle Because the alarm log file is large, you should check the alarm log every day (check whether there are "ORA-", Error "," Failed "and other Error information ), therefore,

SQL GROUP BY and sqlgroupby Group by is a GROUP query. Generally, group by is used with Aggregate functions.You use group by to group by the ITEM. ITEMNUM field. If the content of other fields is different, how can this problem be displayed?A B1 abc1

About the _ external_scn_rejection_threshold_hours parameter and scnheadroom patch in oracledb11gR2About the _ external_scn_rejection_threshold_hours parameter and scn headroom patch in oracle db 11gR2From:Installing, Executing and Interpreting

Expdp export table under sys user error ORA-39165 and ORA-39166Expdp export table under sys user error ORA-39165 and ORA-39166When a colleague exports a table under the sys user using expdp, an error is returned. All the logs are as follows: [oracle@

Oracle table connection modes (SQL optimization) 1. NESTED LOOP For a small subset of connected data, nested loop connection is a good choice. The nested loop is used to scan a table. Every time a record is read, it is searched in another table

ORA-27102: handling of outofmemory errors Problem description: Originally, SGA 4G and PGA 2G. Alter system set sga_max_size = 30G scope = spfile; Alter system set sga_target = 30G scope = spfile; After, SQL> shutdown immediateDatabase

DBA_Oracle Startup/Shutdown (concept) (various maintenance operations on the database), dba_oracleshutdown I. Summary The Complete Oracle Database startup process is completed in three steps: Start instance --> load database --> Open

[Translated from mos] When will the OGG extraction process obtain data from the database for oracle databases?For oracle databases, when will the OGG extraction process obtain data from the database?Reference Original:When GoldenGate Fetches Data

Manually process the v $ archive_gap method under DG, dgarchive_gap After 9i, the oracle slave uard standby database generally does not need to manually process the lost logs. FAL will automatically help us with the loss. The following example shows

Oracle queries table information to obtain table fields and field comments. oracle Fields Obtain table fields: Select * from user_tab_columns where Table_Name = 'user table' order by column_name Get table comments: Select * from user_tab_comments

In the Oracle11g environment, use utl_smtp to create a storage process for sending emails If there are too many email storage processes on the internet, I will not forward them. Let's make a simple example; Create or replace procedure Send_mail

Oracle uses the row range query to retrieve 4 to 10 rows and oracle10 rows. Rownum cannot be used directly. aliases must be converted after query. Take the EMP table as an example and take 4 to 10 rows: Select * from (select rownum id, t. * from