Oracle

Precautions for installing oracle11g r2 on windows 7 x64 and windows 8 x64: Install both 32-bit and 64-bit JDK with vc ++ redistributable and.. net framework 3.5 installation path and Temporary Folder path cannot contain Chinese characters. the

Sqlplus Application Example 1. export the queried data in sqlplus> set pagesize 0 set newpage none set trimout on set trimspool on spool/tmp/outfile. log select * from table; spool off 2. sqlplus cannot use Up on the keypad, Down to list used

Oracle operation skills because of the customer's requirements for advanced database operations (at least for me ). Since Oracle has not been thoroughly studied before. I have never heard of many operations, but I think it is important in

Database Learning (6) -- basic query operations database Learning (5) -- create and update a data table 2 http://www.bkjia.com/database/201305/207493.html In database operations, a developer or user needs to retrieve information in a data table to

Oracle share serverI attended training with my colleagues today and mentioned this part. I will review it here.This block is different from the connection pool in PG. pgpool, pgbounce, and pgbouncer are lightweight connection pools, which are small

GoldenGate System 3: trouble shooting and log 1. Global log [SQL] [oracle @ irms155 ogg] $ tail ggserr. log 11:20:10 WARNING OGG-03504 Oracle GoldenGate Delivery for Oracle, rorajs. prm: NLS_LANG character setAL32UTF8 on the target is different from

In many cases, we need to use alter system kill session to terminate a session in the database and release the resources occupied by the session to solve the problem. For example, daniel's environment often uses the following statement to kill

The Oracle Concept Network Service name and sid SID are the unique identifier of the database. SERVICENAME is the name of the network service and can be set at will. It is equivalent to the alias of a database instance and can be remembered and

SQL converts datetime to a string and truncates the string select sr_child as 'child name', sr_parents as 'parent name', ss_updatetime as 'allocation time', left (ss_updatetime, CHARINDEX ('', ss_updatetime)-1), SUBSTRING (CONVERT (CHAR (19),

Some problems with importing data from oracle11g to oracle9i when exporting the dmp file from oracle11 and then importing data to oracle9i, there are many errors. To sum up: Problem 1: solution: log in AS sys in the 11g database and modify the

Oracle uses the old control file to back up and recover the new data file backup control file and create a new tablespace and data after the backup: SQL> alter database backup controlfile to trace as '/home/oracle/ctl. SQL '; Database altered. SQL>

The Oracle random extraction record method used the random extraction record problem in the system; a lot of related information was found on the internet, and different methods and their differences were found. These are all ORACLE-based methods.

Oracle interview Summary 1. The relational tablespace describing tablespace and datafile is a logical component of the database. Physically, the database data is stored in the data file. Logically, the database is stored in the tablespace, which is

What are the differences between oracle functions and stored procedures? 1. the difference between return values. A function has one return value, while a stored procedure returns multiple or no 2 values through a parameter. the difference between

Oracle 10g tablespace physical location transfer so I moved the tablespace to another hard disk, the process is as follows: Operating Environment: Database: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 tablespace: database Files used

Group by: group by (EXPRESSION) You can use the group by clause to divide a table into smaller groups. Note: 1. all columns or expressions in the selelct list must appear in the group by clause or group function, but the group by clause can contain

/******************************* Assume that the name of the data dictionary table is stored: data_dict_entry table structure: create table data_dict_entry (DICTTYPEID VARCHAR2 (128) not null, DICTID VARCHAR2 (128) not null, DICTNAME VARCHAR2 (255),

In the oracle query statement, the use case when statement Syntax of case when is as follows: case when expression then valueA else valueB end; the specific use is as follows: select (case when. column1> = 1 then' success 'else' failure 'end) as

Oracle rman local connection: $ rman target/or $ rman target/nocatalog remote connection: $ rman target sys/sys @ skyRMAN command execution method: 1. single command execution 2. run {} 3. script Execution rman target/@ XXXX. rmanrman

Goldengate is the best tool for synchronizing data from heterogeneous databases. Add extract process ---- Extract parameter file to capture -- EXTRACT EIEX_EFSETENV (NLS_LANG = "AMERICAN_AMERICA.AL32UTF8") SETENV (ORACLE_SID = erpdb) userid system @