Discover oracle database sql expert certification, include the articles, news, trends, analysis and practical advice about oracle database sql expert certification on alibabacloud.com
Label:After installing Oracle (64-bit), PL/SQL developer, execute PL/SQL occurs for example the following error:On the Internet, my PL/SQL developer is incompatible with Oracle, that is, PL/SQL does not support 64-bit
Oracle Database-practical operations (3) PL/SQL
Oracle ---- PL/SQL
PL/SQL is a programming Language that combines Procedural Language and Structured Query Language (SQL ).
PL/
Tags: Microsoft create name driver Java data local exec1. Connect oracle8/8i/9i Database (thin mode) String path = Request.getcontextpath ();String basepath = request.getscheme () + "://" +request.getservername () + ":" +request.getserverport () +path+ "/";%> Connection string for OracleString url= "Jdbc:oracle:thin: @localhost: 1521:ORCL";ORCL SID SID for your database (the identification number of the
Global Zone (PGA):This system diagram is very important to hear, many companies interview request handwriting this figureInstallation of the 3.pl/sql toolThe first installation did not succeed, under the CSDN resources, now think of it should be tnsnames.ora there is a Sqlnet.ora two files are not configured, resulting in the connection when the detection of the database is only a 222222222, go in to say n
= sid_ DESC = (sid_name = ORCL) (Oracle_ HOME =/opt/oracle/product/11gr2)) LISTENER = (description_list = (DESCRIPTION = (A ddress = (PROTOCOL = TCP) (HOST = 192.168 . ) (PORT = 1521 ))) Adr_base_ LISTENER =/opt/oracle This file changed, and the Tnsnames.ora file in localhost changed to local IP, I do not know whether this has played a role, anyway changed is also true# Tnsnames.ora Network Confi
Tags: prot cal appears application Evel directory name connect directory ZHS16GBKFirst, on the official website to download the corresponding version of PL SQL, the machine is 64-bit download 64-bit, URL: Https://www.allroundautomations.com/downloads.html#PLSClick the application. exe file to install.Installation is successful, open, there will be a need to register the pop-up window, enter the following registration code, only for Plsql Developer 12.
When installing the Oracle database's PL/SQL tool, the computer name is the name of the user name that is automatically generated after reloading the system, as a programmer, there is a strong obsessive-compulsive disorder, you want to use their English name as the name of their computer, so the name of the computer changed; Results pl/ The SQL
PL/SQL Developer
Remote connection to Oracle Database
I searched many methods online. This is feasible!
1. Configure the server tnsnames. ora file. If oracle is not installed on the local machine, you can copy one (tnsnames. ora file) in the specified directory, because I have installed
Php has powerful functions that not only support mysql, mssql, and mysqli, we can also connect to oracle Data. to make php support for oracle very simple, we just need to put php. extention... php has powerful functions that not only support mysql, mssql, and mysqli, we can also connect to oracle Data. to make php support for
Source: http://blog.csdn.net/hzfu007/article/details/6182151Often encounter situations where SQL Server data needs to be migrated to Oracle.Look it up online, there are many ways to use third-party tools, etc., but SQL Server itself provides an "import and export" tool that allows you to convert SQL Server data into Oracle.The following is a simple list of the fo
SQL * Loader is a data migration tool provided by the Oracle database system. It provides a command line method that allows you to load a large amount of data into the Oracle database in batches. Although both the Oracle
Oracle----PL/SQLPL/SQL is a programming language that combines process language (procedural Language) with Structured Query Language (SQL)PL/SQL is unique to Oracle, and is an extension to the. Different database vendors have simi
View the SQL Execution history of an Oracle Database
Method 1: Use the LogMiner Tool
Advantage: the log content can be fully mined to find all SQL statements that have been executed
Disadvantages:
If archiving logs are not enabled, you can only mine on-premise logs.
LogMiner usage
Method 2: view the HIST View
Advantage
Oracle Database indexes are the structures on disks associated with tables or views. We can retrieve rows from tables or views more quickly. Oracle Database indexes mainly contain keys generated by one or more columns in a table or related view. These keys are stored in a structure (B tree ).
1. Index in
As a development/ tester , more or less have to deal with the database, and the operation of the database is ultimately SQL statements, all operations to the end are operational data, then the control of SQL performance has become a very important task in our work. Here are some practical ways to look at
database. 3. Connect to the database using PL/SQL developerThe database is populated with the service_name of the remote databases ,Note: According to the actual user name, password and database:User name: Gateway Password: Gateway database: ORCL 4, after the conne
process, what happened during this time is more complex, such as: How SQL statements are handled in the database, the order of execution?Under the Oracle Database system architecture, the SQL statement is generated by the user process and then to the corresponding server pr
I have made some optimizations to oraclesql and recorded them myself. I also hope to help you: 1. Use where to use less having; 2. query more than two tables, place fewer records on the right. 3. Reduce the number of table accesses. 4. Place subqueries at the top of where subqueries. 5: avoid using * in the select statement as much as possible *
I have made some optimizations to oracle SQL and recorded them
Oracle Database SQL single-row functions-date functionsPrefaceThe date functions of the Oracle database are very powerful and relatively large. I will sort it out for future reference.. Convenience for yourself and convenience for others!Common date functions1. Sysdate: curr
Tags: div list direct. com PNG restart path instance articleThe Oracle database is not installed locally, but you want to use PL/SQL to connect to the server-side database. 1. Create a new network folder, under which you create a new admin folder under which to create a new Tnsnames.ora file (copy the contents of the f
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.