This article will introduce some interesting functions that trisi often uses in daily life, or which are rarely used. There are two types of introduction:
Famous functions-frequently used functions
Non-famous functions-although rarely used, they are
This article is not ready to introduce all of the Oracle functions, in the current situation, I do not have this time, need to learn too much, to spend most of the time on learning to use the technical aspects:), so if you are ready to learn all the
This article will introduce some of the functions that are often used in everyday life, or that are very interesting, though they are rarely used. It is divided into two kinds of introductions, namely:
Famous letters-functions that are often
Oracle String FunctionsRecently changed the new company, and back to the Oracle database, a lot of things have forgotten, just have an impression, these two nights smoked a bit of time, the oracle of the string of some processing functions to do a
Functions in oracle are divided into character functions, number functions, date functions, empty processing functions, conversion functions, and other common functions. The following are some SQL functions commonly used in ORACLE: lower () function
Single-record functions in SQL1. ASCIIReturns the decimal number corresponding to the specified character;SQL> select ascii ('A') A, ascii ('A') A, ascii ('0') zero, ascii ('') space from dual;A ZERO SPACE------------------------------------65 97 48
--- The following is OracleClient
The following describes how to access the Oracle database through the ASP. NET page through System. Data. OracleClient,
In fact, it is relatively simple,
First, let's introduce the environment,
My machine is
Single record function in SQL 1. ASCII returns the decimal number corresponding to the specified character; SQLselectascii (A) A, ascii (a) a, ascii (0) zero, ascii () spacefromdual; The AAZEROSPACE------------------------------------659748322.CHR
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Article submission: T_Torchidy (jnchaha_at_163.com)
Oracle web Environment Injection Technology## BY Jianxin# Http://www.loveshell.net/#
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