, or 25thDatePart (' y ', ' 2005-7-25 22:56:32 ') returns a value of 206 that is the No. 206 Day of the YearDatePart (' yyyy ', ' 2005-7-25 22:56:32 ') returns a value of 2005 that is 2005The SQL Server DATEPART () function returns a portion of the SQL Server datetime field.The syntax for the SQL Server
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 Manager
B.
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/SQL too
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/SQL
Oracle learning notes 3 SQL commands, oracle learning notes SQLSQL introduction SQL supports the following types of commands: 1. data Definition Language (DDL) 2. data manipulation language (DML) 3. transaction Control Language (TCL) 4. the Data Control Language (DCL) is a detailed note of the four
SQL Server parses xml to Oracle and SQL Server Oracle
Write a program: Read a table in SQLserver Based on the status bit and download the value of one of the fields. The value is of the XML type, insert the content of the XML file to another Oracle database, and update the t
Method 1: As you all know, to connect to Oracle using PL/SQL, you need to install the Oracle client software. Have you ever wondered whether to directly connect to Oracle without installing the Oracle client? In fact, I always wanted to do this, because this client is so ann
Oracle tutorial pl/SQL introduction, oracle tutorial plsql
This example describes Oracle pl/SQL. We will share this with you for your reference. The details are as follows:
I. What is pl/SQL?
Pl/
Oracle cold, stay at home and read the "Mastering Oracle SQL" 2nd, found that Oracle's function is still very strong, there are 200 optical functions, hsql is difficult to match. The next stubborn, it seems either to risk using Hibernate3.0 SQL mapping function, or to run the JDBC assembly VO. 1. Report Totals dedicate
both Oracle and SQL Server follow the SQL-92 standard: http://owen.sj.ca.us/rkowen/howto/sql92F.html , but there are some differences, the difference is as follows:
Oracle table name, field name, stored procedure name, variable name cannot exceed 30 string lengths.
The top syntax is not supported in
This article is purely gossip and basically has no practical value. Oracle always uses SQL _ID to mark a unique SQL statement. SQL _ID corresponds to SQL _TEXT one by one. If the two SQL texts are different, including spaces and o
SQL date functions
-- DATEADD-- Returns a new datetime value based on a specified date.-- DATEADD (datepart, number, date)-- Abbreviation of date-- Year yy, yyyy-- Quarter qq, q-- Month mm, m-- Dayofyear dy, y-- Day dd, d-- Week wk, ww-- Hour hh-- Minute mi, n-- Second ss, s-- Millisecond MSSELECT dateadd (mm, 5, '2014/1/8080') as date -- DATEADD-- Returns a new datetime value based on a specified date.-- D
Oracle learning notes 4 SQL commands (2): SQL operation language category, oracle learning notes
SQL is classified into the following language categories1. Data Definition Language (DDL)Create, Alter, Drop
2. Data manipulation language (DML)Insert, Select, Delete, Update
3.
SQL optimization skills (Oracle), SQL optimization skills oracle
SQL optimization tips (1): Connection sequence in the Where clause: oracle parses the where clause in order from bottom to top. According to this principle, the conn
Tags: SQL Oracle server DB2 time functionSQL Server Time article: *************************************************************One, Time function--getdate Get current timeSelect GETDATE ()--dateadd Original time Add: 2013-02-17 13:20:16 this time plus 12 monthsSelect DATEADD (month,12, ' 2013-02-17 13:20:16 ')--return: 2014-02-17 13:20:16.000 (parameter MONTH can be changed to day,year etc. date plus corres
How Does oracle obtain the SQL Execution Plan of the client to optimize the SQL statement?
Today is September 25,. I continue to learn about SQL optimization and have written two notes on how to obtain the SQL Execution Plan. Although the notes are a bit rough, you can find
Oracle experiences 1 -- oracle introduction @ basic SQL statement @ conditional query @ sort data theory and case studies1. Oracle IntroductionOracle is the first word for English translation of oracle (Oracle bone inscriptions) U
Tags: style io ar using SP for data on art1.string Contact operatorSQL Server use + or contact (SQL Server 2012)In Oracle, you can also use the contact, but can not used + to the contact string, you should use | |;2.oracle date time is different with SQL Server date.SQL Server Date just has a date part, not contains ti
When Oracle database performance problems occur, it is effort-saving to use the Oracle toolkit and give reasonable optimization suggestions.
The following two packages are described and their specific practices.
The smallest adjustment tool for SQL Tuning Advisor.
Use one or more SQL statements as the input content, an
Oracle SQL uses with recursive analysis (for example) and oracle Recursion
The WITH recursion provided by Oracle is not just a repetition of tree-like queries. In fact, recursive WITH statements can provide more flexible tree-like Query functions.
The following describes the CYCLE statement. This statement not only su
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.