Oracle

A. Forget the login password for users other than SYS and system users.   Login with SYS (or system) User: CONN Sys/pass_word as sysdba;  use the following statement to modify the user's password: ALTER user user_name identified by "Newpass";   Note:

1.PMON: Background processResponsible for clean-up after an abnormally aborted connectionPmon will roll back uncommitted work, release the lock, and release the SGA resource previously allocated for the failed processResponsible for monitoring other

For some reason, the DDL permissions of Oracle are not available to the user.The previous approach was to create a user without giving it the permissions to make table.However, during use, the user is found to have ALTER TABLE permissions.After

1. Copy the table structure and its data:CREATE TABLE Table_name_new as SELECT * from Table_name_old2. Copy only the table structure:CREATE TABLE Table_name_new as SELECT * from Table_name_old where 1=2;Or:CREATE TABLE table_name_new like Table_name_

1: BULK INSERT Insert into Recipedetail (Rdid, ROID, TYPE, NAME, Mediweight, Medinum, Money, Operatetime, Chargenumber, REMARK, instruction, Amountevery, Mediunit, STATUS) Select Seq_recipedetail.nextval,a.* from ( Select

Way One: (not formally)The number of columns in the select is the same as the number of columns in the prepared excle.Select Xh,name from table name where xh = ' ghf ' for update; (No results or one or two rows of results found)In Excel isXH Name123

Select B.username,B.sid,A.SQL_ID,A.sql_text,A.sql_fulltext,B.event,A.executions,--Trunc (((Decode (a.executions,0,0,a.cpu_time/a.executions)/10000)) C_time,---units 0 o ' sTrunc (((Decode (a.executions,0,0,a.elapsed_time/a.executions)/10000)) E_time,

1. Linux InstallationMainly do not set the home partition of the special large2. Install some of the necessary packages.Yum Install-y binutils.x86_64 elfutils-libelf-devel.x86_64 Compat-libstdc++- -. x86_64 Compat-libcap1.x86_64 gcc.x86_64 gcc-c++.

Explain common Oracle SQL operations and explain oraclesqlCreate tablespaces and users /* Note: if the corresponding user and tablespace already exist, you need to delete the corresponding user and tablespace and create them all again */-- delete

Explain how to query and unlock Oracle lock tables and explain how to unlock oracle locks Database Operation statement category DDL: database mode definition language; Keyword: create DML: data manipulation language; keywords: Insert, delete, and

Oracle default initialization Username Password and password change tutorial, oracle Password Change When installing ORACLE, if the password is not reset for the following users, the default password is as follows: User name/Password

Error _ CannotloadOCIDLL87 (problem resolved) returned when Navicat is connected to Oracle ), Navicate is a good tool for IT staff to connect to various popular databases for our convenience. An error occurs when you connect to Oracle: Cannot

Oracle optimization: several methods for accessing data from Oracle. How to access data in ORACLE 1. Full table scan (FullTableScansFTS) To scan the entire table, Oracle reads all rows in the table, check whether each row meets the WHERE

Summary of table connections and connection Summary 1. Number of times of nested loop accessSYS @ PROD> create table t1 (Id number not null,N number,Contents varchar2 (4000));SYS @ PROD> create table t2 (Id number not null,T1_id number not null,N

Oracle Data tutorial for Data Pump migration and oracle tutorial for Pump migration Export: 1. Create the db link of the original database first. Create public database link db_local connect to userxx identified by passwd using '(DESCRIPTION =

Oracle11g error ORA-00054: the resource is busy, require the specified NOWAIT how to solve ?, Oracle11gnowait Oracle11g a table can only query, add, delete, modify are not allowed, can not drop, and truncate all fail will report the error ORA-00054:

Summary of ROWNUM usage in ORACLE and oraclerownum usage For the rownum problem in Oracle, many documents do not support>, >=, =,... And, can only use the above symbols (, & gt; =, =, .. and will prompt SQL syntax errors, but often cannot find a

What should I do if Navicat returns an error _ CannotloadOCIDLL87 when connecting to Oracle ?, Navicate is a good tool for IT staff to connect to various popular databases for our convenience. An error occurs when you connect to Oracle: Cannot

Scott Account Login Failed, error ORA-01017: invalidusername/password; logondenied how to solve ?, I had a headache for a long time while reinstalling the oracle database. If you are reading this article, it means you have encountered the same

What is an oracle stored procedure? Oracle Stored Procedure Quick Start, oracle Stored Procedure 1. What is an oracle stored procedure? Stored Procedures and functions are also PL/SQL blocks stored in databases. However, stored procedures and