Today, I am working on an OA report. I use a stored procedure to calculate some data. When doing a for xxx in xxxx loop end loop; loop, I never knew it was Mao. I can't catch the no_data_found exception in for any more. Once this no_data_found Oracle occurs, it automatically jumps out of the for loop, but I don't know what went wrong, that was depressing for an hour. Shit. Later I remembered that pl/
Today, I am working on an OA report. I use a stored procedure to calculate some data. When doing a for XXX in xxxx loop end loop; loop,
I never knew it was Mao. I cannot catch the no_data_found exception in for any more. Once this no_data_found occurs
Oracle will automatically Jump Out Of The for loop, but I don't know where the error occurred. It was a depressing hour. Shit.
Later I remembered that PL
1) classification of Sets
Oracle supports three types of collections:
Associative array (Index-by table)
Nested table)
Variable-length array (VARRAY)
One of their differences is that the Nested table and VARRY can be used either in PL/SQL or directly in the database, but the Associative array doesn't work, that is, associative array cannot be created separately u
.: 7844 name: TURNER salary: 1500.0Number: 7499 name: ALLEN salary: 1600.0No.: 7782 name: CLARK salary: 2450.0No.: 7698 name: BLAKE salary: 2850.0
What are two simple questions about PL/SQL programming in oracle ?;
Question 1SET SERVEROUT ONDECLAREV_FLAG BOOLEAN;BEGINFor I IN 2 .. 100 LOOPV_FLAG: = TRUE;For j in 2.. I-
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
Develop PL/SQL subprograms and packages, write triggers using PL/SQL, and Apply Oracle and pljdbc to JDBC.
1. subprograms:
Declaration, executable, and Exception Handling (optional)
2. subprogram classification:
A. Process-execute some operations
A. syntax of the creation pr
. Manipulating LOB Data Objects in Pl/sql using the package Dbms_lob provided by Oracle. LOB data types can be grouped into the following four categories:
. BFILE
. Blob
. Clob
. NCLOB
Operator
As with other programming languages, Pl/
triggersA. Enabling and disabling triggers: When to prohibit: Prohibit data import and exportsql> ALTER TRIGGER aiu_itemfile DISABLE;sql> ALTER TRIGGER aiu_itemfile ENABLE;B. recompiling a trigger: After a database object has changedC. Deleting a triggersql> DROP TRIGGER Aiu_itemfile;19. Triggers and stored proceduresTrigger Stored proceduresWrite no parameter, return value has parameter, return value (parameter)Write cannot commit or rollback canCal
locator) is stored in the original table. This locator is a pointer to the actual data. To operate LOB Data Objects in PL/SQL, use the DBMS_LOB.LOB package provided by ORACLE. The data types can be divided into the following four types:
. BFILE. BLOB. CLOB
[1] [2] Next page
The ORACLE tutorial is the basics of
types:numeric
Table 2 Character data types
Table 3 Date and Boolean
LOB data type
LOB (Large object, Large object) data type is used to store large data objects such as images, sounds, and LOB data objects can be binary or character data with a maximum length of no more than 4G. LOB data types support arbitrary access, and long only supports sequential access. The LOB is stored in a separate location, while a lob locator (LOB locator) is stored in the original table, which is a pointer to t
PLSQLPL/SQL developer is an Oracle Database DeveloperProgramIntegrated Unit Development Environment (IDE). With PL/SQL developer, you can easily create the server part of your client/server application. So far, you can do the following in the worst case:• Use a text editor to Write Program units (processes, triggers, a
Pl/sql developer is the most frequent Oracle client GUI program I use to manage Oracle databases.
Currently the latest version is: 6.0.4
January 5, 2005-version 6.0.4 releasedenhancements Package bodies, type bodies, and materialized views would disappear F ROM User defined folders Opening a user defined folder when
must execute
I hope this article will help you with Oracle database programming.
Articles you may be interested in:
Knowledge points for PL/SQL programs in oracle review notes
Solution to PL/
access. Lob is stored in a separate location, and a "Lob locator" (lob Locator) is stored in the original table. This locator is a pointer to the actual data. To operate lob Data Objects in PL/SQL, use the dbms_lob.lob package provided by Oracle. The data types can be divided into the following four types:. Bfile. Blob. Clob. NclobOperatorLike other
The ORACLE tutorial is as follows: Oracle PL/SQL getting started.
I. Objective of PL/SQL
Structured Query Language (SQL) is a common Language used to access relational databases. It is
The ORACLE tutorial is as follows: Oracle PL/SQL getting started.
I. Objective of PL/SQLStructured Query Language (SQL) is a common Language used to access relational databases. It is a fourth-generation Language (4GL) and its exe
Introduction to ①pl/sql Program designPL/SQL is an advanced database programming language that is specifically designed to access Oracle databases in a variety of environments. Because the language is integrated into the database server,So
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.