What Is Delete Adjacent Duplicates in ABAP?

The system deletes all adjacent duplicate entries from the internal table . Entries are duplicate if they fulfill one of the following compare criteria: Without the COMPARING addition, the contents of the key fields of the table must be identical in both lines.

How do you remove duplicates from an internal table?

First sort your with key fields. Then delete adjacent duplicate entries from comparing all fields.

How do I delete duplicates in SAP ABAP?

Introduction. DELETE ADJACENT DUPLICATES FROM COMPARING . Using the ABAP statement mentioned above, we can compare values of a column of any table/ internal table and delete the duplicates. Once the duplicates are deleted, we get unique values from a string/ internal table.

How do you find duplicates in SAP?

You may use following logic to delete duplicate entries from an internal table and show in the output the specific entry which is duplicate as an error: Let say ITAB1[ ] has all your data. Sort it based on key and then assign it to another temporary table ITAB2[ ]. i.e. ITAB1[ ] = ITAB2[ ].

How can we find duplicate values from internal table in ABAP?

Take all data into TEMP table. You can add one more numeric field to TEMP table. Add 1 to all rows for this field. Then use collect statement and delete data from TEMP where numeric field value is greater than 1.

How do I count internal table records in ABAP?

You can use the LINES function to get the number of rows in an internal table. Use the following syntax to call the function: DESCRIBE TABLE LINES Once the function is executed the variable will hold the number of rows in the internal table.

How do you count tables in SAP?

In Oracle database environment, you can use the select count command to determine the entries number of a table. In SAP level, you can use transaction code SE16 or SE16N to get the same output which is much easier. So, just execute transaction code SE16N.

How do you count loops in SAP ABAP?

The variable sy-tabix, for the internal tables operations. This variable holds the number of the record currently being read in an internal table loop. When a loop statement is executed, the system assigns value 1 for the first iteration and increases it for each new record.

What is Sy Tfill in ABAP?

sy-tfill —> gives the total number of records in an Internal Table with last updates. this is same as the variable where we store the count in Describe statement. DESCRIBE TABLE ITAB LINES N.

What is Sy Tabix in SAP ABAP?

sy-tabix = Index of Internal Tables. set by commands processing internal tables (e.g. READ, LOOP) It contains the nr/index of the last line accessed for standard or sorted tables. In case of hashed tables it is set to 0. since hashed tables are no index tables, they use a hash administration.

Do loops ABAP?

DO loop executes the block of statements until the specified number of times. DO loop is an unconditional looping statement. No logical expression or condition used in DO loop. The block of statements can gets executed specified number of times in DO loop.

Do Enddo statements do in SAP ABAP?

The statements DO and ENDDO define a control structure, which can contain a closed statement block statement_block. Without the addition n TIMES, the statement block is repeated until it is exited using one for the statements for leaving loops. In particular, the statement EXIT is ideal for exiting a loop completely.

What is Do While loop in SAP?

The WHILE command is preferable while considering the performance of programs. The loop continues until the logical statement is found to be untrue and exits the loop if a false statement is found, and the first statement after the WHILE loop is executed.

How do I print even numbers in SAP ABAP?

To check even or odd in ABAP Program, you need to take input from user using PARAMETERS and divide it by 2. The number which when divided by 2 gives remainder zero is called Even number while the number which gives remainder one is called odd number. To get remainder in ABAP we use mod keyword.

How the execution of while loop will be terminated?

A while loop can also terminate when a break, goto, or return within the statement body is executed. If there are no trailing underscores, the loop never executes.

How does while loop work?

The while loop evaluates the test expression inside the parenthesis () . If the test expression is true, statements inside the body of while loop are executed. The process goes on until the test expression is evaluated to false. If the test expression is false, the loop terminates (ends).

Is a while loop a pretest or posttest?

The while loop is known as a pretest loop, which means it tests its expression before each iteration. This is an infinite loop because it does not contain a statement that changes the value of the number variable.

Why while loop is better than for loop?

A while loop is a little easier to explain than a for loop because a while loop will simply run the same code over and over until the condition becomes false. In the example above, as long as x is less than 4, the while loop will continue to execute.

How does while loop start?

First, we set a variable before the loop starts (var i = 0;) Then, we define the condition for the loop to run. As long as the variable is less than the length of the array (which is 4), the loop will continue. Each time the loop executes, the variable is incremented by one (i++)

How many times does a loop execute?

A for loop is used when you want to execute the same task (or a set of tasks) multiple times. You would rarely loop through code for exactly ten times. Normally, you’ll want to loop through an array instead.

What are the 3 actions that need to be taken for a loop to work successfully?

The loop consists of three important parts: the initialisation, the condition, and the update. In the initialisation step, you set up the variable which you’re going to use in the condition.

How many times do-while loop will be executed if condition is false?

Explanation: As I mentioned in the beginning of this guide that do-while runs at least once even if the condition is false because the condition is evaluated, after the execution of the body of loop.

Will a for loop always executes once?

4 Answers. You could say a for-loop is always evaluated at least once. But if a for-loop’s condition is not met, its block will never execute.

What is used to exit the infinite loop?

Answer. Answer: To stop, you have to break the endless loop, which can be done by pressing Ctrl+C.