teradata case statement

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Shell programming If syntax, case syntax, while statement, until statement, for statement, select statement

Oneexec While Read lineDo? InstructionsDoneMethod TwoCat File|while Read LineDo? InstructionsDoneMethod ThreeWhile Read lineDo? InstructionsDoneUntil syntaxUntil Do? directive:DoneNote: The condition will not be established, the execution of the cycle, the condition is set to stopFor syntax1 for variable name in variable listDo? directive:Done2 for ((EXP1;EXP2;EXP3))Do? directive:DoneDescriptionThe for is followed by 3 expressions, the first is the variable initialization, the second is the ran

Oracle: Control statement IF. elsif statement, Case statement, for Loop statement

Tags:bms demo conversion berfor loops charoracletput execution --Multiple IF statements ( note: BEGIN END, IF condition then,elsif condition Then,else ... END IF ) begin if FALSE then Dbms_output.put_line (' Execute if statement ... '); elsif   True then Dbms_output.put_line (' Execute ELEIF1 statement ... '); elsif   TRUE then Dbms_output.put_line (' Execute ELEIF2

Why does the statement after a break in a switch statement do not satisfy the case condition after it is omitted? Is the basis for execution more than the case condition?

$a=5;switch($a){ case 6: echo "\$a is 6"; case 5: echo "\$a is 5"; case 4: echo "\$a is 4";} As in the above example, my understanding is that each time $ A is compared to the value of the case, the output statement is the same, and the non-conformance is the nex

Oracle Tutorial: CASE statement and CASE expression

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

PL/SQL daily question: difference between a CASE statement and a CASE expression

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

Linux shell Process Control Statement instance explanation (if, for, while, Case statement instance) _linux Shell

: ======================== 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

Statement: Spoke statement, switch case--7 month 22nd

: 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

ORACLE-34-IF statement, Case statement, loop Loop, while loop, for loop

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:

SQL statement-case when then else end, SQL-case

SQL statement-case when then else end, SQL-case Output the following results based on the preceding table information: The following are the database and table structure data: create table DeptSales(deptID int,SubjMonth int ,sales int ,deptname varchar(50)) insert into deptsales (deptid ,subjmonth,sales) values (1,1,55);insert into deptsales (deptid ,subjmon

SQL statement Optimization-in statement optimization case

Times, lob pre-read 0 Times.Table ' Ufi8s6u81179717475734 ' . Scan count 1 , Logical read 37 Physical reads 0 Times, pre-read 0 Times, lob logic reads 0 Physical lob reads 0 Times, lob pre-read 0 Times.Table ' Ufi2j0n11179717502375 ' . Scan count 1 , Logical read 46 Physical reads 0 Times, pre-read 0 Times, lob logic reads 0 Physical lob reads 0 Times, lob pre-read 0 Times. Table found hereUft3a6h61176948132312 has near

Case statement and case expression

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 the case expression, and provides an example This helps you better understand the simil

Switch Case statement in C + + multiple values same statement block notation

Switch Case statement:1 Switch(expression)2 {3 Caseconstant-expression 1:4 {5 statement block 1;6 Break;7 }8 ...9 Caseconstant-expression N:Ten { One statement block N; A Break; - } - default: the { -Statement Block n+1; - } -}Whe

Shell script for, while Loop statement and Case Branch statement

Tags: for statement while statement case statement Shell Yang ShufanThe shell, as a scripting language, also contains other program control structures such as loops, branches, and so on, making it easier to perform more complex and powerful functions.Using the FOR Loop statementAt work, you often encounter a task that

Use the case statement to exclude the SQL statement with a denominator of 0.

An SQL statement is used in the project, such: Select sum (price * xiaoliang)/sum (xiaoliang) price from ...... When sum (xiaoliang) = 0, the error of division by 0 will occur. What should I do? At first, I wantProgramProcessing, that is, moving the computing process to the program is obviously troublesome. Later, I found the method of using the case statement

Linux conditional judgment-if statement-case statement-for 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

Switch case statement learning notes in Javascript

Switch case is a qualified data in js, which is much simpler than if else. Next I will introduce my understanding of js switch case. In the if Condition Statement, only one logical condition can exist. if multiple conditions exist, you can use nested if statements to solve the problem. However, this method increases the complexity of the program, reduce program r

ORACLE PL/SQL Instance refinement fifth conditional control: Case statement

5.1 Case Statement1. The case statement has the following structureCase SELECTORWhen EXPRESSION 1 then STATEMENT 1;When Expresssion 2 then STATEMENT 2;........When EXPRESSION n then STATEMENT N;ELSE

How to use the switch case statement in java

Switch syntax The code is as follows Copy Code switch (expression){case constant Expression 1: statement 1;....Case constant Expression 2: statement 2;Default: statement;} Default is to execute it if it is not matched, and default is no

Shell Script Programming Learning Note-case statement

Tags: Linux shell1.case structural Conditional statement syntaxThe case statement is actually the canonical multi-branch if statementCase "string variable" inValue 1) Instruction 1 ...;;Value 2) Instruction 2 ...;;*) Instruction 3 ...EsacChinese programming Syntax:Case "Find a girlfriend condition" inHave a room) to ma

A solution case for deadlocks caused by the load data statement in Mysql _mysql

look at this. When this value is set to 0 o'clock, a table with a self-increasing field inserts the behavior of a row of data: 1) Apply for Auto_inc lock 2) Get the current AUTO_INCREMNT value N, give auto_increment plus 1 3) Perform the insert operation and fill n into the new row corresponding field 4) Release Auto_inc lock We see this process, although innodb in order to reduce the size of the lock, the execution of the statement is released

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