Oracle

Some Oracle processes have been killed, the state is set to "killed", but the locked resources are not released for a long time, sometimes there is no way to restart the database. Now provides a way to solve this problem, that is, in Oracle can not

1. The first is to turn off monitoring (so that remote clients can no longer connect);2. Issue a system checkpoint to unify the system modification number of the data file and the control file; (alter system checkpoint;)3.shutdown Immediate &

1: First of allSelect Row_number () over (order by ID ASC) as ' RowNumber ', * from table1Generate a collection with an ordinal2: Re-query the 1th to 5th data of the collectionSELECT * FROM(select Row_number () over (order by ID ASC) as ' RowNumber '

1. Create DATABASE personCREATE TABLE number, name Nvarchar2 ( number , sex nvarchar2 ( $ ), Password nvarchar2 ($))2. Create a type in the database that corresponds to the object structure to be passed to the Java side: CREATE OR REPLACE TYPE

One:In Oracle database operations, we sometimes use lock table queries and operations such as unlocking and kill processes(1) The Code of the Lock table query has the following form:Select COUNT (*) from V$locked_object;SELECT * from V$locked_object;

First, the use of dbms_output1. Debug code, output variables and values of expressions.2, debugging code, output dynamic SQL splicing statements, and then run the output of the statement to debug.3, generate reports and other functions.Second,

Handle the Oracle SQL statement in clause (where ID in (1, 2, ..., 1000, 1001)), and if more than 1000 items in the clause will be an error. This is primarily a limitation that Oracle considers performance issues. If you want to solve the minor

DblinkWhen we want to cross the local database. When you visit data in another database table, you must create a dblink of the remote database in the local database, and access the data in the Remote database table as you would the local database by

When you connect to Oracle remotely in a local area network, you are always prompted to reject the connection, and in the case of a firewall shutdown and the Oracle server listening port turned on, the possible error is that Oracle's listening IP

First ask the table space name and size of the other database, then create the appropriate tablespace in your Oracle, and finally use the command to import and export the data.Add:1. To create a new database;Oracle data import and export imp/exp is

1. Install Redhat operating system (version custom)(1) Installation table interview:Yum groupinstall "X window System"-yYum Groupinstall desktop-y2. Planning for storageOracle RDBMS installed locally (/oracle directory)Oracle datafile stored on

1. CREATE TABLE SpaceCreate Tablespace Ts_awLoggingDataFile ' d:\app\Administrator\product\tablespace\ts_aw.dbf 'Size 10MAutoextend onNext 5MMaxSize 20480M;2. Create userCreate user HB identified by HBDefault Tablespace Ts_aw;3, to the user

The below is about Utl_file operation:First, you should make a directory at the path so you wish:[Email protected] ~]$ mkdir Test_dirAnyone has the privileges read, write and executeUse SYS log in Oracle:[Email protected] ~]$ rlwrap sqlplus

--Create Employee-- ------------------------- DECLARELc_employee_number per_all_people_f.employee_number%type: = ' WRKNO1000001 ';LN_PERSON_ID Per_all_people_f.person_id%type;LN_ASSIGNMENT_ID

 watermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvdgfuz2xpdxfpbmc=/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolve/70/gravity/southeast ">Table, select statement, cursor: The return result can be a collection.Note: The result of the cursor is a

DDL Data Definition Build table View build OtherDropCREATE TABLE T (a varchar2 (10)); Variable string maximum is 10Transaction-----------Transaction Fallback Statement--------rollback; All statements are rolled back•-----------Transaction

Execute statements in batches-disable foreign keys for all tables and disable execution statements During database migration and data import, the existence of foreign key constraints between tables causes frequent insert errors. Batch execution of

ORACLE creates tablespaces, creates users, modifies user default tablespaces, and grants and views permissions. oracle Permissions Oracle creates users, tablespaces, imports and exports,... commands   // Create a temporary tablespace Create

Configure OracleGateway12 to connect to SQLserver2014 In recent work, we need to connect to SQLserver2014 based on Oracle. We can configure Gateway to implement this function. This Gateway is actually implemented through dblink. That is, SQL Server

Oracle11G uses DGbroker to create dg and oracle11gdgbroker 1. Environment: A. host environment: centos6.5 B. software environment: oracle 11.2.0.4 C. host information: DG1: 192.168.100.51 (Database sid: atest) DG2: 192.168.100.52 2. prerequisites