db2 aggregate functions

Aggregate function Count,max,min,avg,sum ... Select COUNT (*) from T_employee Select Max (fsalary) from T_employee Sort ASC Ascending desc Descending SELECT * from T_employee ORDER by Fage First in descending order of age. If you are of the same age, in ascending order of salary SELECT * FROM T_employee-Fage desc,fsalary ASC Order BY is placed after the WHERE clause Wildcard Filter Wildcard filter with like Word wildcard with ' _ ' Multi-character

= LNGARRTOSTR (SRC1);Const CString STR2 = LNGARRTOSTR (SRC2); Sort (SRC1);Sort (SRC2); Const CString STR3 = LNGARRTOSTR (SRC1);Const CString STR4 = LNGARRTOSTR (SRC2); CarraySetdifference (DST,SRC1,SRC2);Const CString STR5 = LNGARRTOSTR (DST); Setunion (DST,SRC1,SRC2);Const CString STR6 = LNGARRTOSTR (DST);Setintersection (DST,SRC1,SRC2);Const CString STR7 = LNGARRTOSTR (DST); Setsymmetricdifference (DST,SRC1,SRC2);Const CString STR8 = LNGARRTOSTR (DST);}//adds elements to the array, which can

";2. Find the information of the heroine of the country other than Shu and WuSELECT * from Sanguowhere country not in ("Shu", "WU")and sex= "female";3. Find the information of Shu hero Shing ID 1, 3 or 5SELECT * from Sanguowhere(ID in (1,3,5) and country= "Shu") or name= "Marten cicada";4, matching empty, non-empty1, empty: where name is null2, non-null: where name is NOT NULL3. Example1. Shu heroine information with a null valueSELECT * from Sanguowherename is null and country= "Shu" and sex= "

This article mainly describes the comparison between common DB2 functions and Oracle functions, including descriptions of type conversion functions, time and date, string functions, and mathematical functions, the following is a d

The following articles mainly introduce the comparison between common DB2 functions and Oracle functions. If you are curious about common DB2 functions and Oracle functions, this article will unveil the secrets of this article, th

DB2 column functions are one of our most commonly used functions. They calculate a group of values in the column to obtain a single result value. Let's take a look at the DB2 column functions. DB2 column

1. type conversion functions: decimal, double, Integer, smallint, real, Hex (arg), date, time, timestamp, char, and varchar 1. type conversion functions: decimal, double, Integer, smallint, real, Hex (arg), date, time, timestamp, char, and varchar 1. type conversion functions: decimal, double, Integer, smallint, real, Hex (arg ), Date, time, timestamp, char,

Tags: decimal time function substr function ble name format Daquan binary ETHDB2 built-in functions are really a lot, it is almost impossible to master each function, so this article is not intended to describe the specific use of each function, but rather to provide an overview of the functions of each function, so that when you feel you need certain functions o

Oracle How to present Oracle's relative functions in DB2 (III.) Author:ccbzzp In reality, you may often encounter some of the functions of Oracle in DB2, Here I simply conclude that there may be many ways in which a function can be found, not all of which are listed here, Welcome to all of you to continue, in order to

The following article describes how DB2 implements the functions of Oracle databases and summarizes its experience in actual operations, in this article, I will share with you some tips and experiences on implementing certain Oracle functions in DB2 ...... In practical applications, you may often encounter how to impl

Oracle How to present Oracle's related functions in DB2 (IV.) Author:ccbzzp In reality, you may often encounter some of the functions of Oracle in DB2, Here I simply conclude that there may be many ways in which a function can be found, not all of which are listed here, Welcome to all of you to continue, in order to sh

Oracle How to present Oracle's related functions in DB2 (i) Author:ccbzzp In reality, you may often encounter some of the functions of Oracle in DB2, Here I simply conclude that there may be many ways in which a function can be found, not all of which are listed here, Welcome to all of you to continue, in order to shar

When you store multilingual data in a DB2 UDB database, Unicode is often the only encoding that adapts to the entire range of data. DB2 can store and process Unicode data, but its sorting function is limited to binary ordering and three cultural sorts. In addition, a database can have only one collation, which is determined when the database is created. These sorting restrictions are an obvious challenge fo

The following articles mainly describe the types of commonly used DB2 functions. I saw the types of commonly used DB2 functions on the relevant website two days ago. I think it is quite good. I will share them with you, the following is a detailed description of the relevant content, hoping to help you in this regard.