Oracle

This forum article (CCID technical community) focuses on solutions to the cursor problem returned from Oracle databases. For details, refer to the following: Using Data Block to operate oracle yesterday, cursor is returned. A problem occurred during

The statement for creating Jobs in the Oracle database is as follows: Begin Sys. dbms_job.submit (job =>: job, What => proc_yw ;, Next_date => to_date (14:00:00, dd-mm-yyyy hh24: mi: ss ), Interval => trunc (sysdate) + 1 + 14/24 ); Commit;

In Oracle databases, user permissions are divided into two types (here we do not discuss dba or dbopr permissions, but only the permissions of common users ), system Privilege System permission and User Table Privilege User data Table permission. 1.

1. Disable dataSvrmgrl> Shutdown abort2. Modify the initialization parameter file$ Vi $ Oracle_HOME/dbs/init . oraAdd the following parametersRollback_segments = (system) _ partition upted_rollback_segments = (r01, r02, r03, r04) _

In previous versions, except incomplete restoration, there is usually no good solution. Currently, Oracle10g provides the new flashback drop feature to accelerate the recovery of user error operations. The flashback drop function allows you to

Adjustment of IPC resources, kernel. shmmax, and Oracle shared memory (I) display and release of IPC Resources [Plain] [root @ david ~] # Ipcs-m ------ Shared Memory Segments -------- key shmid owner perms bytes nattch status ...... 0xbe3bb918 543950

Since the ORACLE recursive query syntax will look at ORACLE recursive queries, we should be clear about what recursion means. Here I will not explain it more, just to give a brief introduction. The so-called recursive query makes the data structure

Oracle hot backup and cold Backup 1. Introduction to cold backup: the cold backup database backs up all key files after the database is closed, including data files, control files, and online redo log files, copy it to another location. In addition,

You can use SQL statements to view the database structure in Oracle. You can view the table structure based on the following statements: 1. select. column_name field name,. data_type data type,. data_length,. data_precision integer,. data_Scale

Automatically kill sessions that have been executed for more than 1 hour -- Create log table create table KILL_SESS_HIST as select s. *, T. START_TIME from v $ transaction t, V $ session s where s. TADDR = T. addr and t. START_TIME   

Oracle escape is used for translation. For example, the character '%' is stored in the name of the test field in the database ', fuzzy query is required if I want to query records whose second digit is '%', but '%' is a fuzzy query wildcard. I

Auto increasing id within oracle 1. Create table: Java code declare num number; begin select count(*) into num from all_tables where table_name=upper('eric_emp_tbl') and owner=upper('eric'); if num=1 then execute immediate '

Oralce table association query [SQL] // table join query // 1. select s. subscriberno, c. customerid from subscribern s, customer c where s. customerkey = c. customerkey and subscriberno = 'cxm'; // 2. join // select s. subscriberno, c. customerid

Oracle Export Database PLSQL how to export table structure need to log in oralce User: sqlplus user name/password @ Instance name SQL> set serveroutput onSQL> set long 999999SQL> set feedback offSQL> spool temp. sqlSQL> SELECT DBMS_METADATA.GET_DDL

Oracle compares two tables Comparing the Contents of Two Tables  Table A and table B. A column with the same name has different content. I have two tables named A and B. they have identical columns and have the same number of rows via select count (*

Oracle knowledge point Summary 1 (select from for update) 1. select from for update: When we use ORACLE for data processing, we sometimes need to lock the queried records and prohibit other processes from modifying the records. Oracle Database

In oracle, the backup mode is used to back up (archive mode) when the database is enabled, and the tablespace or Database is placed in the backup mode, for example, SQL> alter database begin backup; Database altered. so what happens when the

Oracle error ORA-03113: end-of-file on communication channel solution machine power-off, oracle cannot start after, error ORA-03113: end-of-file on communication channel (end of the communication channel file) SQL> startupORACLE instance started.

SQL _TRACE/10046 how to use events. A detailed analysis is a powerful tool provided by oracle for SQL tracking. It can track the parsing process, execution plan, and bind variables, recursive calling and so on first execute the TRACE command of SQL

Flash recovery is incomplete recovery and Incomplete recovery. It is fast and simple. The disadvantage is that it can only process logic, physical errors such as deletion of data files cannot be processed (the records in the table space in the