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1. select * from emp; 2. select empno, ename, job from emp; 3. select empno number, ename name, job from emp; 4. select job from emp; 5. select distinct job from emp; 6. select distinct empno, job from emp;Note: Because employee numbers are not

1. Select * from EMP;2. Select Empno, ename, job from EMP;3. Select empno number, ename name, job work from EMP;4. Select Job from EMP;5. Select distinct job from EMP;6. Select distinct empno, job from EMP;Description: Because the employee number is

'The process is written by the western people. I would like to recommend it to you.     *'**************** Function sayusd (byval mynumber) Dim dollars, cents, temp Dim decimalplace, count Redim place (9) as string Application. Volatile true Place (2

How to convert IP addresses and integers in JAVA This example describes how to convert IP addresses and integers in JAVA. Share it with you for your reference. The specific analysis is as follows: I. Basic knowledge points IP --> INTEGER: Convert IP

Virtualization of VMware 's storage and virtual hosting management (2)a , Simulation Environment650) this.width=650; "title=" Picture 1.png "src=" https://s3.51cto.com/wyfs02/M02/99/5E/wKiom1lHm7CiPhQ_ Aaddi6inyxu602.png "alt=" Wkiom1lhm7ciphq_aaddi6

"SQL classification: DDL DML DCL", DDL (Database definition Language)Define different data segments, databases, tables, columns, indexes, and other database objects, common statement keywords: Create drop alter, etc.1, modify the table field, ALTER

Read a floating point value and convert it to the Chinese capital of the amount.   Test requirements:   When the amount is an integer, it only indicates the integer part, omitting the fractional part, and adding the word "integer.   When the amount

Image Retrieval seems to be a profound learning. Have we ever thought about building an image retrieval system on our own while enjoying Google, Baidu, tineye, and other search services? Opendir is a simple open-source document image retrieval

CoolEdit basic recording tutorial (ultra-complete)I have been paying attention to the original sound for many days. It's really a good place. Everyone is eager to show their talents, but it makes me a little lost. I hope there are too few technical

The values in the cookie stored on the page contain special characters, but the passed values contain some special characters such as ":", which cannot be directly carried by special characters. Therefore, when storing cookies, convert it to unicode