pl sql complete tutorial

, create a new Layer two folder \NETWORK\ADMIN, Then build a tnsnames.ora file under the Admin folder and add the following to the file: [Plain] view plaincopy ORACLE = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = localhost) (PORT = 1521)) (Connect_data = (SERVER = dedicated) (service_name = ORACLE) ) ) Listener_oracle = (ADDRESS = (PROTOCOL = TCP) (HOST = localhost) (PORT = 1521)) Oraclr_connection_data = (DESCRIPTION = (Address_list

. Defining a record variable based on a cursor is more convenient than declaring a record type variable and is not prone to error. Example: DECLARE--Defining cursorsCURSOR Emp_cursor is SELECT ename,sal from EMP;EMP_REOCRD emp_cursor%rowtype;--cursor VariableBEGIN--Open cursorOPEN Emp_cursor;LOOP--Get RecordsFETCH emp_cursor into Emp_record;EXIT when Emp_record%notfound;Dbms_ouput.put_line (' Employee Name: ' | | emp_record.ename| | ', Employee pay: ' | | Emp_record.sal);End LOOP;--Close curso

My environment is like this: Win7 64-bit + Oracle 11g + PL/SQL 9.04 Since PL/SQL does not support 64-bit data at the moment, only Oracle client 32-bit data can be used, so you need to download it from the official website: Remember: you must download a 32-bit package) Http://www.oracle.com/technetwork/database/features

ORACLE provides the ability to store PL/SQL programs in a database, and can run it from anywhere. This is called a stored procedure or function . Stored function: There is a return value, after creation is completed, through the Select function () from dual;Stored procedure: Because there is no return value, after creation is complete, you cannot use the SELECT s

. I've been designing and building a new tool for pl/sql developers in the last few months. It is named SWYG (which can be found in www.swyg.com) and can help programmers complete the generation, testing, and reuse of code. It has several unique components. I have specified a two-letter abbreviated name for each component, as follows:　　SF-Swyg的基础部件 　　SM-Swyg的元数据

PL/SQL Exception error handling and plsql error handlingZookeeper Exception HandlingA good program should be able to correctly handle all kinds of errors and recover from errors as much as possible. ORACLE provides EXCEPTION and exception handler for error handling. ① There are three types of exception errors:1. Predefined ErrorThere are about 24 predefined ORACLE exceptions. To handle this exception, you d

above contents can be copied in this place: E:\OracleDB\app\MuLing\product\11.2.0\dbhome_1\network\admin\tnsnames.ora. iii. installation of PL/SQL Developer Install the previously downloaded PL/SQL Developer (not downloaded on-line), but you need to emphasize that there are no brackets in the installation path and d

The Oracle tutorial you are looking at is the Oracle Pl/sql introductory case practice. We have already learned the basics of pl/sql programming, and this article will combine a case to deepen understanding of these knowledge points. A Case Introduction A database has two

Win8 x64 PL /SQL Enter user name password, connect times wrong:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6E/22/wKioL1V1B3jz5PutAAFWFtrv114122.jpg "title=" 10.png "alt=" Wkiol1v1b3jz5putaafwftrv114122.jpg "/>Environment:1.win 8 64bit as a client, install the client650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/6E/26/wKiom1V1BeiTYDtoAAA2FjZX5OE301.jpg "title=" 11.png "alt=" Wkiom1

, Configuration Tnsnames.ora Save the new Tnsnames.ora file in Notepad under this path: C:\instantclient_11_2_x86\NETWORK\ADMIN\tnsnames.ora The content reference is configured below: My_xxxserver =(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP) (HOST = 10.199.200.102) (PORT = 1521))(Connect_data =(SID = ORAVM)(SERVER = dedicated))) 4, extract PL/SQL to the target machine, such as: C:\Program Files (x86) \plsql D

SQL server has been used before oracle is used. What impressed me most during the use of SQL server was its strong select statement and record concentration. The results of a select statement can be used as both a record set and a set. While the select statement acts as a query statement, it can also be used as a value assignment and computing statement. This makes it easy to write

Label:To quickly use PL/SQL developer for Oracle database-related development, summarize some of the more frequently used tips below, from the network and your own tests 1. Switch schema --switch SchemaAlter session set current_schema= PO; --get Current Context informationSelectSys_context ('USERENV','Current_User') Current_User, Sys_context ('USERENV','Current_schema') Current_schema fromDual 2.

S =Select T. * From TW=Whereb=Between andl=Like '%'O = orderInsw = in (select a from a where a) SW=Select T. * from t where TSC *=Select count (*) from TST= Select T .*,T. rowid from TF=For updateu= Update t set T. where T 1. Copy the shortcuts.txt file to the X: \ Program Files \ PLSQL developer \ plugins directory. Pay attention to the permissions for win7. 2. Choose tools> perferences> editor> autoreplaces from the menu. 3. Restart PL/

If an online e-commerce system, we now need to be based on the order form reflected in the consumption of the customer simply divided into three categories of large and small and inserted into three tables. Order Form orders (order_id number, cust_id number, amount number); Small Customer table Small_cust (cust_id number, tot_amt number); Customer table Med_cust (cust_id number, tot_amt number); Large Customer table Big_cust (cust_id number, tot_amt number); If the total consumption amount

=(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 items can be used together to uniquely identify a connection object.3. Configure pl/

Label:A few days ago because of a oracle32bit client + PL/SQL connection not Oracle was the leader despise, asked me to use PL/SQL No, I installed the open PL/SQL login interface is not the same as his, there is no connection for

PL/SQL cursor usage, plsql cursor usageZookeeper Use of cursors ① Cursor ConceptTo process SQL statements, ORACLE must allocate a region called context area to process required information,This includes the number of rows to be processed, a pointer to the expression after the statement is analyzed, and the queried active set ).A cursor is a handle or pointer poin

DB2 respectively. (I don't know what the situation is. After the configuration is completed, one HOST in tnsnames. ora is the IP address, and the other is my HOST name .) As a result, PL/SQL of DB1 is connected normally (because the IP address exactly matches the HOST address of listener. ora), while PL/SQL of DB2 pro

 Use of Cursors① Cursor ConceptIn order to handle SQL statements, ORACLE must allocate a region called the context area to process the required information.Contains the number of rows to be processed. A pointer to the representation of the statement that was parsed and the active set of the query (active set).A cursor is a handle (handle) or pointer to a context.with cursors, PL/

Configuring the PL/SQL Developer Connection Server databaseThe client software is installed on the remote application server and can be downloaded on the Oracle official website.Example:Environment Application Server operating system WIN 7 Local address 192.168.56.117 Production server operating system Enterprise Linux Server Release 5.4