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2025-01-28 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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To install the database, generally install the grid infrastructure first, and then install the database, and the network must first come out on port 1521 on the pre-installed grid infrastructure.
Each time the template library is built, there will be an avatar. Look at the avatar.
You have to decide which environment variable is before you read it.
Sqlplus / nolog
Conn / as sysdba
Show user
Check the status of the database, mainly based on two views
Desc v$database_incarnation
Set linesize 10000 will fold the line display at 80 by default.
Select * from vested database national; see running CURRENT on No.2
The auxiliary al16 utf16 international code al32utf8 is a subset of these two.
If the main zhs16gpk is coded in China + al32utf8, then all can be solved.
Once the database character set is selected, it is difficult to change, otherwise it will encounter a lot of unpredictable problems and a lot of garbled code.
NLS_LANG in the registry of the client needs to be implicitly converted. Windows must be zhs16gpk. Linux and mac can only write AL32UTF8 (default code table).
OFA-OMF
In dbca, if only oracle programs are installed on a server, then 80% of the memory can be allocated to oracle and 20% to the operating system.
. Oraenv toggles oracle environment variables
Conn / as sysdba
Show parameter db_name
Show parameter db_domain
Show parameter service should correspond to lsnrctl service.
Startup opens the database to mounted state to opened
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Continue with the installation of the previous hadoop.First, install zookooper1. Decompress zookoope
"Every 5-10 years, there's a rare product, a really special, very unusual product that's the most un
MySQL Storage engine and Lock = = Storage engine: 1. Introduction
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