Oracle

 Https://localhost:1158/em ie cannot login, Google Browser can. Very depressed ~ORACLEDBCONSOLEORCL, Oracleoradb11g_home2tnslistener, Oracleserviceorcl normal start, you can even pl/sql.After Oracle was installed, I used IE login, one months did

ImportJava.sql.*; Public classOraclehelper {//Test Connection Function Public Static voidMain (String []args) {Derbyhelper de=NewDerbyhelper (); String SQL= "SELECT * from Users"; List list=de.querylist (SQL,NULL); for(intI=0;i) {Object

Oracle deletes all objects under a user and performs with cautionIn PL/SQL, click "New", "Command Window", Paste and execute directly--Delete an object under a userSet heading off;Set feedback off;Spool D:/dropobj.sql;Prompt--drop ConstraintSelect '

Syntax for SQL Server:SELECT TOP number|percent column_name (s) from table_nameMySQL syntaxSELECT column_name (s) from Table_namelimit numberExampleSELECT *from Personslimit 5Oracle syntaxSELECT column_name (s) from Table_namewhere ROWNUM

Concept: Consistent backups, that is, backups made after database consistency is closed, typically by: Shutdown immediate mode is turned off.Step: 1. View the three core files in the location: Data files, control files, log filesData files: select

When the graphical interface cannot be used, we need to manually delete the database one, manually delete the file system database1. Stop monitoring, prevent new connections, and at the same time, the database is configured with EM, also need to

MysqlDROP TABLE IF EXISTS ' order ';CREATE TABLE ' order ' (' id ' int (one) not NULL auto_increment,' number ' varchar (255) Not NULL COMMENT ' ticket No. ',' applicant ' varchar (255) Not NULL COMMENT ' ticket Applicant ',' state ' int (1) is not

1: View current tablespace (tablespace)Select Tablespace_name from Dba_data_files order by Tablespace_name;Execution results1: System tablespace: Data used to hold internal tables and data dictionaries for Oracle systems, such as table names, column

Sqlloader:Conn Naaa/[email protected]Set echo onSet term offSet Line pages 0Set Feedback offSet Heading offSet Trimspool onSpool D:\Azhuqiuhong\export_warr.csvSelect ' 2018/07/09 ' | | ', ' | | company_report| | ', ' | | src_id from Arr_info_a;Spool

Query the Eai_salesorder table for today (20180712) data.Method OneSELECT * from Eai_salesorder where eaicreatedate like ' 2018-07-12% '; spents 20.176 secondsMethod TwoSELECT * FROM (SELECT * to Eai_salesorder ORDER BY eaicreatedate Desc) where

Open used TimeSet timing on;CREATE table users (ID number), name varchar2, password varchar2 (20));Insert into users values (111111111111111, ' Enuero Qi star ', ' [email protected] ');INSERT into users (ID, name, password) select * from users;

Disclaimer: The following content is self-follow the teaching of the screen after the collation (mainly for personal use), if there is infringement please inform, will be deleted as soon as possible.First, the index1. Overview:One of the database

1. Connect by is used in structured queries, and its basic syntax is:Select ... from tablenameStart with condition 1Connect by Condition 2Where Condition 3;Cases:SELECT * FROM tableStart with org_id = ' hbhqfwgwpy 'Connect by prior org_id =

Install the corresponding Oracle client (Instant clients) according to the Python version and the database version:http://www.oracle.com/technetwork/database/database-technologies/instant-client/downloads/index.htmlDepending on the version of Plsql,

#!/bin/bash# 2018-07-07 Oracle Database back#filename = ' Date +%y%m%d 'Filename= ' Date +%y_%m_%d_%h%m 'Dirname= ' Date +%y_%m_%d 'Bakpath= '/u01/databak/'if [!-D ${bakpath}${dirname}]Thenmkdir ${bakpath}${dirname}Fi#mkdir

Original address: https://www.cnblogs.com/Devin-Blog/p/5556234.htmlUsing the SYS or System/manager as SYSDBA; Connect to the database. Create Konglin:create user Konglin identified by pwd_oracle; Delete users, drop user Konglin; Grant user

1, open the CMD Command dialog box, login Sqlplus (mainly if the administrator account, the user name needs to add as SYSDBA, the password format is [email protected]/instance name), enter the AWR Execute SQL statement (Note that The path is based

Create User Sql> create user tpcc identified by tpcc default tablespace  tpcc temporary tablespace temp; User created. sql> set line 200sql> col username for a30sql> col  Account_status for a20sql> select username,account_status,created from dba_

Merge into form: merge into [Target-table] A using [source- table sql] B ON ([conditional Expression] and [...] ...)  when matched THEN  [update sql]  when not Matched then  [ INSERT sql] Function:

Stored Procedures1. Basic structure:create [or Replace] procedure procedure_name[(parameter 1, Parameter 2,,,)]as ----or is, can not omit variable declarations ----can omit beginexceptionend ;/Note : The code is stored on