online oracle pl sql compiler

the subquery, if the subquery is empty, then nothing will be inserted.4, the climax is coming--after removing the where in the subquery, that is, the select condition is definitely a value, it actually inserts all the records in Table E. Ah, fortunately the test library, the amount of data is small, but also executed 5s. Well, that's unusual. Delete all! Depending on the result set insert or need to be cautious ah, otherwise how much garbage data in practice.5, return to the original intention.

Tags: oracle plsql indexed viewA view and index of the start of PL/SQL basics PL/sql: Process language (Procedure Language) and structured language (structured Query Language)The combination of the programming language, is theSQLextensions that support multiple data types, s

exception (this is the choice of custom exceptions in most cases); if it is TRUE, the newly thrown exceptions are stored at the top of the exception stack (Other exceptions have occurred ).3) Oracle pre-defined PL/SQL exceptions Exception name ORACODE SQLCODE Trigger time LOGIN_DENIED 01017 -1017 Invalid user name or password

First install Oracle Enterprise Edition or client lite. After that, you need to modify your Tnsnames.ora file to increase the database.My Oracle instance is ORACLE1 and placed in the D:\oracle\ directory. My IP address is 192.168.1.102.Modify the following: add: DEMO = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.102) (PORT = 1521)) (Connect_data

Oracle Database Programming: PL/SQL programming basics Oracle Database Programming: basic concepts of Oracle databases http://www.bkjia.com/database/201307/226254.html 2. PL/SQL program

Oracle | PL/SQL sets auto-increment of primary keys. Oracle does not set auto-increment of primary keys. You need to set the sequence and trigger to auto-increment of primary keys. Example: create a table menu: [SQL] create table menu (menuId number (10) not null primary key

record variable typeDeclare Type type_record_dept is record ( Deptno Dept.deptno%type, Dname Dept.dname%type, Loc Dept.loc%type ); Temp type_record_dept;Begin Temp.deptno: = 56; Temp.dname: = ' software '; Temp.loc: = ' gz '; Dbms_output.put_line (Temp.deptno | | "| | Temp.dname | | "| | TEMP.LOC);End--Declaring the record variable with RowTypeDeclare Temp Dept%rowtype;Begin Temp.deptno: = 57; Temp.dname: = ' it '; Temp.loc: = ' sz '; Dbms_output.put_line (Temp.de

1. Download PL/SQL Dev 2. Download the simplified Oracle client 3. Install PL/SQL Dev and the Chinese package 4. decompress the Oracle thin client. For example, extract the Directory D: \ oracle10g. 5. Configure the

, sum2 (deptno) 4, systimestamp 5 FROM emp 6 group by deptno; Deptno sum (SAL) SUM2 (DEPTNO) incluimestamp ------------------------------------------------------------------------------------------------------------ 30 9400 9406 24-JUN-11 08.31.19.722000 PM + 20 10875 10880 24-JUN-11 08.31.19.722000 PM + 10 8750 8753 24-JUN-11 08.31.19.722000 PM + SQL> We found that the results of sum (sal) and sum2 (deptno) are inconsistent. When we ap

20-feb-81 1600 300 307521 WARD salesman 7698 22-feb-81 1250 500 307654 MARTIN salesman 7698 28-sep-81 1250 1400 307698 BLAKE MANAGER 7839 01-may-81 2850 307844 TURNER salesman 7698 08-sep-81 1500 0 307900 JAMES Clerk 7698 03-dec-81 950 306 rows selected.Define and UndefineSql> Define Name=enameSql> select name,sal from emp;Ename SAL---------- -----SMITH 800ALLEN 1600WARD 1250JONES 2975MARTIN 1250BLAKE 2850CLARK 2450SCOTT 3000KING 5000TURNER 1500ADAMS 1100JAMES 950FORD 3000MILLER 1300Rows select

dual;F1 ()----------59788330Used time: 00:00:07.09 -can see the data change, even if not using relies_on, the result set is also correct. Sql> Select COUNT (*)From Test1, test2where Test1.object_type = Test2.object_typeand Test1.object_type in (' Table subpartition ', ' VIEW ', ' INDEX ', ' table ');COUNT (*)----------59788330Time used: 00:00:03.56 sql> Create or Replace function F2return numberResult_cac

Four simple guidelines to improve the number and quality of Pl/sql code I've been writing Pl/sql code since 1990. That means I've written tens of thousands of of lines of software code, but I'm sure most of the code is very clumsy and difficult to maintain. Luckily, I find it's not too late to find and follow a new w

Basic knowledge of oracle Database PL/SQL 1) Overview: the programming language formed by oracle procedural expansion in the standard SQL language is a unique feature of oracle, languages that support application development. Www.

ORACLE: Configure database connection // Database configuration file directoryE: \ oracle \ ora92 \ Network \ admin \ tnsnames. ora (Database name)Fwmsdb =(Description =(Address_list = Server IP Address(Address = (Protocol = TCP) (host = 10.10.6.40) (Port = 1521 )))(CONNECT_DATA =(SERVICE_NAME = oracledb))) II.1. Use the Oracle Net manager tool 1) Open

The case of PL/SQL programming specification As in SQL, Pl/sql is case-insensitive. Its general guidelines are as follows: Keywords (BEGIN, EXCEPTION, end, IF THEN else,loop, End LOOP), data type (VARCHAR2, number), internal functions (least, SUBSTR), and user-defined subr

PL/SQL single-line functions and group functionsA function is a program that has 0 or more parameters and has a return value. Oracle has built a series of functions in SQL, which can be called SQL or PL/

I found a This book starts with some of the most basic knowledge and works with easy-to-understand examples to help you get started with simple knowledge points at and then go deeper step by step, each step will be used in concert with the example to explain to you. One small step at a time is the foundation of the next step, until the usage is relatively advanced. Oracle10g PL/SQL programming tutorial b

Oracle, paging, and stored procedure are combined to create a paging stored procedure using PL/SQL. 1. Declare a referenced cursor [SQL] view plaincopyprint? 01. create or replace package cur_ref_type02. as -- is or as can be used03. type cur_ref is ref cursor;04. end;Create or replace package cur_ref_typeAs -- is or a

After Oracle 10 Gb is installed, a table is created to write Chinese data. It is found that the PL/SQL developer tool cannot display Chinese normally. To display Chinese characters properly, the server must be consistent with the client encoding. Therefore, check. 1. Check the server code: Execute SQL Syntax: Selec

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