oracle database 12c book

1. View Oracle VersionSql> select * from V$version; bannercon_id-------------------------------------------------------------------------------------------------- --oracle Database 12c Enterprise Edition release 12.1.0.2.0-64bit production0pl/sql release 12.1.0.2.0-production0core 12.1.0.2.0production0tns for linux:ver

1. Start the CDB and PDB databasesSql> select Con_id,dbid,name,open_mode from V$pdbs;con_id DBID NAME Open_mode---------- ---------- ------------------------------ ----------2 1226396669 pdb$seed READ only3 411454583 DB12CCD MountedSql> Alter pluggable database all open;Pluggable database altered.Sql> select Con_id,dbid,name,open_mode from V$pdbs;con_id DBID NAME Open_mode---------- ---------- -------

the source table dept to the output node of the target table dept, if the property match prompts to automatically match by name, click OK (you can also drag the source field to the destination table field, or edit the property panel expression of the target marker segment) At this point, the individual field properties of the two tables have been mapped, a field in the target table is selected, and the field background of the source table is red. Save and verify Click on the target Datastor

Use Toad for remote Oracle 12C data connection 1. Install Oracle12c on the local machine. If you want to install a database on the local machine, select to install data. If you only need to connect remotely, skip this step without installing a database, 2. Configure TNSNAMES) 1) Open the network configuration Assistant

pluggable database test_pdb open; --将test_pdb 打开--Clone PDB (requires SYSDBA permissions under CBD)create pluggable database orcl2 from orcl1; --test_pdb必须是打开的，才可以被打开alter pluggable database orcl2 open; --然后打开这个pdb--Remove PDB (requires SYSDBA permissions under CBD)alter pluggable database orcl2 close; --关闭之后

/database/install. /stage/components/oracle.ctx/12.1.0.2.0/1/datafiles/filegroup15.26.1.jar Similar to a total of 5 files can not find an error (3) 69% when the error is as follows: File not found C:\oracle\product\12.1.0\dbhome_1\demo\schema\mk_dir.sql.sbs error 2.2 69% When the card stops working The above error is ignored, in the 69% state of the "Update regist

Create the wm_concat function on Oracle 12C The wm_concat function has been abandoned on Oracle 11gR2 and 12C. At that time, many of our programmers used this function in the program, leading to program errors. To reduce the workload of programmers to modify programs, you can only manually create a wm_concat function t

connected through the scan IP, the scan IP will be routed randomly, and if it is routed to the second node, an error will not be connected. To verify this problem, a test step has been added. Directly through the VIP connection of Node 1, you will not report the above error. By looking at the ALTER pluggable database syntax, you can see that when you use this command, you also specify the parameter instances. If not

Received the first recovery rescue using Oracle 12C as a production library. There are two business data file file headers damaged, other data files are all a September backup, under current conditions, hope we can help them recover the data in the business documentDatabase version Information The code is as follows Copy Code Sqlgt; select * from V$version;BANNER con_id--------------

#include #include String.h>#include #include voidMain () {Char username[Ten], password[Ten], server[10];Char name[ALL], title[10];FloatSalary printf"Input name:"); Gets (username); printf "input pass:" ); Gets (password); printf ( "input server: "); Gets (server); EXEC SQL Connect:username identified by:p Assword Using:server; printf (input empoyee Name: "); Gets (name); EXEC SQL SELECT sal, Job into:salary,: Title from emp WHERE UPPER (ename) = UPPER (: name); PR intf ( "title:%s, salary:%6.2f

Tags: Err lap automatic server NMP ptime Copyright version ONS12c, how to connect pluggable database: Using the default service connection PDB, after creating the PDB, automatically adding the PDB-named service in the listener; The user creates a service in cluster, and the user creates a service using the Srvctl command and relates to the PDB; Use the command alter session set CONTAINER=PDB; Use Enterprise Manager Express.

If you use global temporary tables and sequence, you may encounter some problems. Because global temporary tables are associated with sessions (or transactions in a session), sequence is related to the database level.In 12C, you can create a sequence that is used only for a given session.--When the global temporary table GTT is emptied in a session (such as commit), the value of sequence is not reset. The n

Tags: http io color ar os using SP strong fileInstall Oracle 12c Tutorial under the original WindowsDisclaimer: This article originally JMQThis article brings you an installation tutorial for Oracle 12C.1. Prepare for 1.1 download Oracle

This article describes how to build a Acfs file system on a virtual machine that already has 12c RAC installed, and use the ACFS snapshot to brush a cow (Copy-On-Write) library to do the test library. Highlight Step: Add ASM disk to virtual machine to build Acfs file systemSecond, create Acfs file systemThird, create the database on the Acfs file system in Node 1. (12