db2 case statement

:[email protected])date=$ (Date +%y%m%d)size=$ (DU-SH/ETC)if [-d/tmp/dbback]Thenecho "Date is: $date" >/tmp/dbback/db.txtecho "Size is: $size" >>/tmp/dbback/db.txtCd/tmp/dbbackTAR-ZCF etc_$date.tar.gz/etc db.txt $>/dev/nullRm-rf/tmp/dbback/db.txtElseMkdir/tmp/dbbackecho "Date is: $date" >/tmp/dbback/db.txtecho "Size is: $size" >>/tmp/dbback/db.txtCd/tmp/dbbackTAR-ZCF etc_$date.tar.gz/etc db.txt $>/dev/nullRm-rf/tmp/dbback/db.txtFiExample 2: Determine if Apache is booting#!/bin/bashport=$ (nmap-s

Use case in DB2 1. WHEN a field in CASE a value in THEN gives ELSE another value in END 2, or: case when a field WHEN a value THEN is assigned to another value END 3. Note: THEN and ELSE do not have to be used together with the use of WHEN or after ELSE or even execute SQL code segments. Example: -- 1 SELECT * FROM SY

Use Case in DB2 1. CaseA FieldWhenA ValueThenAssign a valueElseAssign another valueEnd 2. Or: CaseA FieldWhenA ValueThenAssign another valueEnd 3. Note: Then and else do not have to be used together You can even execute SQL statements after when or after Else.Code. Example: -- 1 Select * From sy_corp_productWhereCase n_corp_code when 969 then 123 else n_corp_code end = 969; -- 2

The UPDATE statement is written differently in DB2, Oralce, and SQL Server databases. This document provides examples to illustrate the differences and differences for your reference. Both Oralce and DB2 support the following syntax: UPDATESET (A1, A2, A3) = (SELECT B1, B2, B3 from B where a. ID = B. ID) Ms SQL Server does not support such a syntax, the corres

DB2 Statement details 1. Data Operation Language (DML: select, delete, insert, update) 2. Data Definition Language (DDL: create, alter) Note: A materialized table is similar to a Query and does not actually form a table. The type is displayed as Query. But it can be used as a table. Create a table and specify its index tablespace Db2 create table (...) in users

Tags: using data SP C size r database SQL BSPaged query statements that are used in different databases:Current page: CurrentPagePage Size: pagesize1. Oracle DatabaseSELECT * FROM (select A.*,rownum rn from (query_sql) A) where Rn Note: query_sql is a query SQL statement.OrSELECT * FROM (select RowNum rn,id from TABLENAME where RowNum 2. Infomix DatabaseSelect Skip CurrentPage First pagesize * from TABLENAME3. DB2 DatabaseSELECT * FROM (select field 1

Case statements and case expressions are an important part of plsql Process Control. Although they are easy to use, they are easy to confuse. This article describes the case statement and case expression, and provides a demonstration to better understand the similarities and

---- Start Some SQL users write insert statements, but most people do not know that DB2's insert statements haveThree formats, That is:Insert a row at a time,Insert multiple rows at a time and insert them from select statements.Consider the following: Create Table user We want you to insert a row of data as follows: Insert into user (name, birthday) values ('zhang san', '2017-1-1 '); We want you to insert three rows of data as follows: Insert into us

PL/SQL daily question: the difference between a CASE statement and a CASE expression: there are many different types of guinea pigs in the world, some of which have identifiable characteristics. For example, the "Abyssinians" skin has a pleated garlands www.2cto.com "Texels" with long curly hair. In contrast, the White Crested Guinea Pig on the header contains a

MySQL: Select * from table name where pid = 0 limit (current page-1) * per page), per page ORACLE: Select * from ( Select rownum as RN, source. * from (SQL statement) Source where rownum ) Result where rn> = (current page-1) * How much is displayed on each page) Sqlserver: How many * from table name where primary key column not in is displayed on each page of select top? (Select top (current page-1) * Number of primary key columns displayed on each pa

Tags: nstat doc active structure delete DMI blank port-668DB2 Database Execution Insert INSERT statement 57016 Error (table inactive)Reason: 1. The table structure has been modified.2. The primary key is removed. Or the primary key has been modified.If you are using the console, you can use theREORG table name;If you use the tool to execute the above statement and then a 42601 error, you can try the followi

DB2 time function statement [SQL] Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/-- > -- Get the current date: select current date from sysibm. sysdummy1; values current date; -- Obtain the current date select current time from sysibm. sysdummy1; values current time; -- Obtain the current timestamp select current timestamp from sysibm. sysdummy1; values curre

: ======================== Copy Code code as follows: SH testwhile1.sh 10 9 8 7 6 Instance 2: (Looping through the contents of the file:) Copy Code code as follows: #!/bin/sh While Read Line;doEcho $line;Done Run Result: =================== Copy Code code as follows: SH testwhile2.sh # do don't remove the following line, or various programs# that require network functionality would fail.127.0.0.1 centos5 localhost.l

: Hamburger! "); //} //else if (a = = "2")//{ //Console.WriteLine ("The Product you selected is: Chicken leg!") "); //} //else if (a = = "3")//{ //Console.WriteLine ("The Product you selected is: Chicken rice flower!") "); //} //else if (a = = "4")//{ //Console.WriteLine ("The Product you selected is: Chicken roll! "); //} //Else//{ //Console.WriteLine ("Your input

One, if statementIn PL/SQL, keywords such as if, then, else, elsif, endif are used to perform conditional logicSyntax format:if conditions 1 Then Statement 1elsif conditions 2 Then Statement 2Else Statement 3End If; Example 1: Practice If structureSolution: Note the program in:Second, Case statementSyntax structure:

(Uncommitted Read) L RS isolation, with a lock-clause X RR isolation, with a lock-clause Blank The WITH clause is not specified on this statement. The isolation level was recorded in Syspackage. Isolation and in Sysplan. Isolation. G STATUS CHAR (1) Not NULL Withdefault

Create a role tableCREATE TABLE Nbctxp. Tbl_nbc_nonbankrole (ID BIGINT not NULL,ROLENAME VARCHAR (50),Createtime TIMESTAMP,UpdateTime TIMESTAMP,CONSTRAINT p_id PRIMARY KEY (ID));CREATE INDEX SQL150130091455900 on NBCTXP. Tbl_nbc_nonbankrole (ID);Let the primary key increment by 1Alter table Nbctxp. Tbl_nbc_nonbankrole ALTER column ID set generated always as identity (start with 1,increment by 1)Create an intermediate table of role tables and user tablesCREATE TABLE Nbctxp. Tbl_nbc_nonbankur (USE

; --nullSELECT * from Studentinfo where stuage is null;SELECT * from Studentinfo where stuage are NOT null; --between and includes boundaries equivalent to >= and Select S.stuname as name, s.stuage+5 as age from Studentinfo s where s.stuage between and 20 --inSELECT * from Studentinfo where stuname in (' XY ', ' WJ ');SELECT * from Studentinfo where stuname not in (' xy ', ' WJ '); --Fuzzy query like%,% represents multiple charactersSELECT * from Studentinfo where stuname like ' X-percent ' --