oca oracle database 12c sql fundamentals

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Oracle 12c JDBC Way to connect to the PDB database

Label:1. Configuring Monitoring This assumes that the CDB database named Orcl,pdb is under the CDB name PDBORCLListener.ora Add (#后面为注释, do not add in) Sid_list_listener = (sid_list = ( Sid_desc = (global_dbname = ORCL) (sid_name = ORCL) #这里是SID名 ) (Sid_desc = (Global_dbname = PDBORCL) #这里是PDB数据库名 (sid_name = ORCL) #这里是SID名 ) ) Tnsname.ora add Pdborcl=

Oracle Database Fundamentals-Stored procedures and functions

95031 107Wang Liju1976/1/ at 95033 101Li June Man1976/2/ - 95033 109Wang Fang Men1975/2/Ten 95031 103Contacts male1974/6/3 95031 6rows selected SQL> SetServeroutput on; SQL> ExecuteHanqi (95031); Kuanming Wang Fang contacts PL/SqlprocedureSuccessfully completed v. Functions (function) Functions are constructed in a similar way to stored procedures CREATE OR REPLACE FUNC

Oracle 11g SQL Fundamentals 01--String manipulation function

Label:stylecolorsponbs adefsqloracle concat (' Hello ', ' world ') stitching HelloWorld substr (' HelloWorld ', 1,5) intercept Hello Length (' HelloWorld ') string length ten InStr (' HelloWorld ', ' W ') W characters first occurrence 6 Lpad (1200,6, ' * ') If 1200 complements 6 bits, fill ' * ' **1200 on the left of 1200 rpad (1200,6, ' * ') If

Oracle Direct Read and write MS SQL Server database (i) How to download Oracle DB Gateway for SQL Server

Tags: style blog http io color OS SP for strongTo synchronize data from Oracle in real time to MS SQL Server, you need to read and write data directly to SQL Server in Oracle, and you can install the Oracle database for

What is the difference between an SQL database and an Oracle database image? Other database

Oracle databases are very different from MSSQL data operations, but there are analogies in mirroring operations. This article is about how MSSQL database mirroring is implemented in Oracle databases, and what differences exist between them. First, the mirror database in the Microsoft

Oracle remote connection (PLSQL, SQL developement + Oracle database + client + remote connection settings, plsqldevelopement

Oracle remote connection (PLSQL, SQL developement + Oracle database + client + remote connection settings, plsqldevelopement Server Configuration: oracle11g R2 x64 1. Set the listener A. Launch bar-> Start-> Program-> Oracle-OraDb11g_home1-> Configure and port tools-> Net M

PL/SQL Configuration connection to remote database Oracle, where Oracle database is not installed locally

Tags: imp config file success tool ... prot www oracle shareFirst download instantclient can be downloaded to the Oracle website, to register the account, must be under the corresponding version, otherwise unsuccessful, 10g,11g version of, I have been sent up, free download: Is crossing, wait a minute Configuration file Tnsnames.ora This one place is generally put (network/admin), only in PL/

MySQL Database paging query, Oracle database paging query, SQL Server database paging

into' Student 'VALUES('8','Lee 48','123','male',' +','Jingan, Shanghai city'); INSERT into' Student 'VALUES('9','Zhang 39','111','male',' +','Shiyan, Hubei province'); INSERT into' Student 'VALUES('Ten','Lee 40','123','male',' +','Jingan, Shanghai city'); I. Querying 5~10 data MySQL Paging query: SELECT * FROM student limit 5, 10; Oracle Paging query: SELECT * FROM (select *,rownum rn from student) where RN between 6 and 10;

What are the differences between SQL database and oracle database images?

Oracle databases differ significantly from MSSQL data operations, but there is an analogy in image operations. This article describes how MSSQL database images are implemented in Oracle databases. What are the differences between them.First, the image database in Microsoft SQL

Oracle SQL Tuning Database optimization steps Graphic tutorial

SQL turning is a tool in the Quest Central software produced by Quest Corporation. Quest is an integrated, graphical, Cross-platform database management solution that can manage Oracle, DB2, and SQL Server databases simultaneously. Introduction to SQL tuning for

Oracle Remote connection (PLSQL,SQL developement + Oracle Database + client + remote connection settings

The remote connection of Oracle database can be implemented in a variety of ways, this article mainly introduces four methods and considerations of remote connection, and through the examples to illustrate, then we begin to introduce.First case:If the Oracle server is installed on this machine, then there is not much to say, the connection is only the user name a

SQL Server, Oracle, and DB2 database SQL statement comparison

other functions SQL Server Oracle DB2 Length Len () length () Substring () substr () 1.2 Appendix 1.2.1 db2v8. 1 Common commands ■ Create a database and execute DB2 create dB oatemp on the server ■ Delete the database and execute DB2 drop dB oatemp on the server ■ Create a tablespace DB2 create user temporary tablespa

The difference between a SQL Server database and an Oracle database

Difference | data | database |oracle|sqlserver For years, there has been a protracted acrimony between Microsoft's supporters and Oracle's supporters. This is where Oracle databases have such capabilities, and there are those features of SQL Server that are at a disagreement. But that's not the point. Admittedly, perfo

Oracle Database Security, SQL injection of PL/SQL

The following articles mainly talk about Oracle Database Security: PL/SQL injection, I found a good reputation for Oracle database security on a website: PL/SQL Injection information for your sharing. We hope you will have some ga

SQL plus and pl/SQL cannot connect to the remote oracle database, ploracle

SQL plus and pl/SQL cannot connect to the remote oracle database, ploracle After the oracle client is installed, SQL plus and pl/SQL may fail to connect to the remote

Oracle: pl/SQL developer connecting to a remote oracle database (Lite version)

=(ADDRESS = (PROTOCOL = TCP) (HOST = 103.65.183.207) (PORT = 1521 )))(CONNECT_DATA =(SERVICE_NAME = avtest)))The first yellow color can be any name.The second Purple ip address is the ip address of the host where the remote oracle is located.The third purple name is the Global Database Name of the remote oracle host, which cannot be modified at will.The last two

There is data in the Oracle database, which cannot be queried by PL/SQL and can be found with sqlplus, and PL/SQL developer caches the data locally

Tags: col program configuration SQL query field positioning Rod AC MVCThese days encountered two problems, are very wonderful, distressed for three days, the final positioning out.Problem one, inserting data through PL/SQL developer to a remote Oracle database server, querying data through PL/

oracle-01-Database Classification/oracle sql*plus common commands

Tags: character dev large database information Management DBA needs to run develop fromI. Classification of databases I. Classification of databases1. Small database: Access, Foxbase2. Medium database: Informix, SQL Server, MySQL3. Large database: Sybase, DB2,

migrating MySQL to Oracle database using Oracle SQL Developer

Oracle SQL Developer is Oracle's official database management tool. This article uses Oracle SQL developer to perform the migration from MySQL to the Oracle database. March 6, 2017 Ope

SQL Server database access to Oracle Database

Recently, we want to implement a business. We need to query the corresponding data in the Oracle Core database based on the table data in the SQL Server database, and then make statistics in the SQL Server database. therefore, we

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