Oracle

See if the CDBSQL>Select from v$database; NAME CDB open_mode con_id -- ------------------------- --------- -----------------------------------------------------------

Package org.sin.common.dao;import java.sql.callablestatement;import java.sql.connection;import  java.sql.drivermanager;import java.sql.preparedstatement;import java.sql.resultset;import

Sql> SELECT Ktuxeusn, Ktuxeslt, KTUXESQN,/* Transaction ID */ 2 ktuxesta Status, KTUXECFL Flags, Ktuxesiz 3 From X$ktuxe 4 WHERE ktuxesta!= ' INACTIVE '; Ktuxeusn ktuxeslt ktuxesqn STATUS FLAGS

Note: The table structure to be exported needs to be created before exporting. If the exported table does not exist in the database, it will be error, if repeated export, the data in the table will be repeated; create table Emp_demo "as select *

[Email protected] ~]# su-oracleClose Node-rac1[Email protected] ~]$ cd/app/crs/product/10201/crs/bin/[Email protected] bin]$./srvctl Stop instance-d racdb-i racdb1[Email protected] bin]$./srvctl Stop Asm-n NODE-RAC1[Email protected] bin]$./srvctl

--query users who have logged in for 3 consecutive days1 Create a table first, as follows:1 Create Table User_data 2 (3user_idnumber,4login_time DATE5 );2 Inserting user login data:1 Insert intoUser_data (user_id, Login_time)Values('10002',

Nstantclient-basic-win32-10.2.0.4.zip1. Unzip to D:/instantclient_10_22. Add d:/instantclient_10_2 to the PATH environment variable3. Add the following environment variables:Tns_admin=d:/instantclient_10_2Nls_lang=simplified Chinese_china. ZHS16GBK (

1. According to rowID to divideSELECT * from T_xiaoxi where rowID in (the Select Rid from (select RowNum rn,rid from, select rowID rid,cid from t_xiaoxi  ORDER BY cid Desc) where rownum9980) Order BY cid Desc; execution time 0.03 seconds 2.

ORACLE 10g character encoding modification does not have the limit of super Character Set, oracle10g ORACLE 10 Gbit/s character encoding modification is no longer troublesome, and there is no limit on super character sets. You can directly change it

Calculate the CheckpointLag of the rep process of the OracleGoldenGate (OGG) destination end. This article is original. For more information, see the source.It is estimated that the Checkpoint Lag calculation method of the rep process on the target

FAQs about Oracle Installation-1 Installing Oracle may be a simple task for some people, but the installation process contains a wealth of knowledge points, especially on the Linux platform, we may encounter a variety of strange problems. We can see

How to create and delete tablespaces in Oracle cainiao 1. When creating a temporary tablespace and creating a tablespace, dbf Files are generally stored in the directory where the datafile file is stored (typically under the folder named by

CentOS6.5 Oracle11G-R2 installation, uninstall CentOS6.5 Oracle11G-R2 installation, uninstallResources (including all my installation processes, system backup files): http://download.csdn.net/detail/attagain/7700437 I. Hardware requirementsCommands

Grant authorization for Oracle cainiao 1. Authorize the database user (the object is the user table) GRANT privilege [,...] ON object [,...] TO {PUBLIC | GROUP group | username} privilege: select: Query insert: insert update: update delete: delete

Query the size of a table with a lob field in the Oracle databaseNote: Because the lob field has an independent lob segment for storage, for a table with a lob field, you cannot only query dba_segments.The following scripts are from:How to Compute

Oracle checks the locked table and the locked process, and kills the process. oracle -- 1. view the locked table SELECT p.spid, a.serial#, c.object_name, b.session_id, b.oracle_username,b.os_user_nameFROM v$process p, v$session a, v$locked_object b,

Quickly detects the lock wait method in the Oracle database and finds out the oracle database In a large database system, to ensure data consistency, the system locks data when operating the data in the database. These locks include read-only locks,

Oracle uses the instr or like method to determine whether the string is contained. oracleinstr The first thought is contains. The usage of contains is as follows: select * from students where contains(address, 'beijing') However, a condition for

[Oracle] pl/SQL -- paging process demo This SQL statement can be used to query records at specific locations in a table. -- Query Method: select * from (select t1. *, rownum rn from (select * from books) t1 where rownum 2; -- Use paging write

View and modify the maximum number of connections in ORACLEZookeeper Step 1: On the cmd command line, enter sqlplus Step 2: Enter the user name and password as prompted 1. view the processes and sessions Parameters SQL> show parameter processes NAME