Programming
Example to apply DO statement in ABAP/4
You will apply this statement when you want to loop data with non-condition loops.
Example 1: Simple Loop
DO.
WRITE:/ sy-index.
IF sy-index = 4.
EXIT.
ENDIF.
ENDDO.The output is
1
2
3
4
Example 2: Loops with n times
DO 4 TIMES.
WRITE:/ sy-index.
ENDDO.The output is same as example 1.
Example 3: Nested Loops
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This tag response about header definition of web page by using tag... .tag will show title of page in title bar of browser.</li> <li><BODY>...</BODY><br> This tag response about body content that you want to show in your web. </li> </ul> <p><strong><u>Example file</u></strong></p> </div> <div class="links"> <ul class="links inline"> <li class="first blog_usernames_blog"><a href="/blog/thitima" title="Read thitima's latest blog entries." class="blog_usernames_blog">thitima's blog</a></li> <li class="comment_add">Add new comment</li> <li class="node_read_more"><a href="/basic-structure-of-html" title="Read the rest of this posting." class="node_read_more">Read more</a></li> <li class="last statistics_counter"><span class="statistics_counter">1035 reads</span></li> </ul> </div> </div> <div class="node" id="node-175"> <h2 class="title"><a href="/difference-between-continue-check-and-exit-statement-in-abap-4">Difference between CONTINUE, CHECK and EXIT statement in ABAP/4</a></h2> <div class="meta with-taxonomy"> <div class="submitted"> Posted January 20th, 2006 by <a href="/user/thitima" title="View user profile.">thitima</a> </div> <div class="taxonomy"> <ul class="links inline"> <li class="first taxonomy_term_4"><a href="/taxonomy/term/4" rel="tag" title="" class="taxonomy_term_4">ABAP/4</a></li> <li class="taxonomy_term_21"><a href="/english" rel="tag" title="" class="taxonomy_term_21">English</a></li> <li class="taxonomy_term_1"><a href="/taxonomy/term/1" rel="tag" title="" class="taxonomy_term_1">IT</a></li> <li class="taxonomy_term_2"><a href="/taxonomy/term/2" rel="tag" title="" class="taxonomy_term_2 active">Programming</a></li> <li class="last taxonomy_term_35"><a href="/topic/it/software/sap-r-3" rel="tag" title="" class="taxonomy_term_35">SAP R/3</a></li> </ul> </div> </div> <div class="content"> <ul> <li> <strong>CONTINUE<br></strong>When you apply this statement, system will pass a current loop. System ignores any statements after CONTINUE statement and start to the next loop.</li> </ul> <blockquote> <blockquote> <p><strong><u>Example</u></strong></p> <pre>DO 4 TIMES.<br> WRITE:/ sy-index.<br> IF sy-index <= 2.<br> CONTINUE.<br><br> ENDIF.<br> WRITE: ’After’.<br>ENDDO.</pre> </blockquote> </blockquote> <blockquote> <blockquote> <p>The output is</p> <pre>1 <br>2 <br>3 After<br>4 After</pre> </blockquote> </blockquote> <ul> <li> <strong>CHECK</strong><br> This statement will apply if you want to check condition before go to next statement. If the result of checking is ’TRUE’, system will go to next step as normally. If the result of checking is ’FALSE’, system will operate look like CONTINUE statement.</li> </ul> <blockquote> <blockquote> <p><strong><u>Example</u></strong></p> </blockquote> </blockquote> </div> <div class="links"> <ul class="links inline"> <li class="first blog_usernames_blog"><a href="/blog/thitima" title="Read thitima's latest blog entries." class="blog_usernames_blog">thitima's blog</a></li> <li class="comment_add">Add new comment</li> <li class="node_read_more"><a href="/difference-between-continue-check-and-exit-statement-in-abap-4" title="Read the rest of this posting." class="node_read_more">Read more</a></li> <li class="last statistics_counter"><span class="statistics_counter">7025 reads</span></li> </ul> </div> </div> <div class="node" id="node-174"> <h2 class="title"><a href="/example-to-apply-while-statement-in-abap-4">Example to apply WHILE statement in ABAP/4</a></h2> <div class="meta with-taxonomy"> <div class="submitted"> Posted January 20th, 2006 by <a href="/user/thitima" title="View user profile.">thitima</a> </div> <div class="taxonomy"> <ul class="links inline"> <li class="first taxonomy_term_4"><a href="/taxonomy/term/4" rel="tag" title="" class="taxonomy_term_4">ABAP/4</a></li> <li class="taxonomy_term_21"><a href="/english" rel="tag" title="" class="taxonomy_term_21">English</a></li> <li class="taxonomy_term_1"><a href="/taxonomy/term/1" rel="tag" title="" class="taxonomy_term_1">IT</a></li> <li class="taxonomy_term_2"><a href="/taxonomy/term/2" rel="tag" title="" class="taxonomy_term_2 active">Programming</a></li> <li class="last taxonomy_term_35"><a href="/topic/it/software/sap-r-3" rel="tag" title="" class="taxonomy_term_35">SAP R/3</a></li> </ul> </div> </div> <div class="content"> <p>You will apply this statement when you want to loop data with condition loops.</p> <p><strong><u>Example 1:</u></strong> Simple Loop</p> <blockquote> <pre>DATA: lv_int TYPE I VALUE 1.<br>WHILE lv_int <= 4.<br> WRITE:/ lv_int.<br> lv_int = lv_int + 1.<br><br><br><br><br>ENDWHILE.</pre> </blockquote> <blockquote> <p>The output is </p> <pre>1<br>2<br>3<br>4</pre> </blockquote> <p dir="ltr"><strong><u>Example 3:</u></strong> Nested Loops</p> <blockquote> <pre>DATA: lv_int TYPE I VALUE 1,<br> lv_int2 TYPE I.<br><br>WHILE lv_int <= 4.<br> WRITE:/ lv_int.<br> lv_int2 = 1.<br> WHILE lv_int2 <= 2.<br> WRITE: lv_int2.<br> lv_int2 = lv_int2 + 1.<br> ENDWHILE.<br> lv_int = lv_int + 1.<br><br><br><br><br>ENDWHILE.</pre> </blockquote> <blockquote> <p>The output is </p> </blockquote> </div> <div class="links"> <ul class="links inline"> <li class="first blog_usernames_blog"><a href="/blog/thitima" title="Read thitima's latest blog entries." class="blog_usernames_blog">thitima's blog</a></li> <li class="comment_add">Add new comment</li> <li class="node_read_more"><a href="/example-to-apply-while-statement-in-abap-4" title="Read the rest of this posting." class="node_read_more">Read more</a></li> <li class="last statistics_counter"><span class="statistics_counter">1930 reads</span></li> </ul> </div> </div> <div class="node" id="node-169"> <h2 class="title"><a href="/select-where-select-check-in-abap-4">Select...Where & Select...Check in ABAP/4</a></h2> <div class="meta with-taxonomy"> <div class="submitted"> Posted January 19th, 2006 by <a href="/user/thitima" title="View user profile.">thitima</a> </div> <div class="taxonomy"> <ul class="links inline"> <li class="first taxonomy_term_4"><a href="/taxonomy/term/4" rel="tag" title="" class="taxonomy_term_4">ABAP/4</a></li> <li class="taxonomy_term_21"><a href="/english" rel="tag" title="" class="taxonomy_term_21">English</a></li> <li class="taxonomy_term_2"><a href="/taxonomy/term/2" rel="tag" title="" class="taxonomy_term_2 active">Programming</a></li> <li class="taxonomy_term_35"><a href="/topic/it/software/sap-r-3" rel="tag" title="" class="taxonomy_term_35">SAP R/3</a></li> <li class="last taxonomy_term_27"><a href="/taxonomy/term/27" rel="tag" title="" class="taxonomy_term_27">Tips and Tricks</a></li> </ul> </div> </div> <div class="content"> <p>Select...Where</p> <blockquote> <pre><br>SELECT * FORM SPFLI<br> WHERE CARRID = ’LH’.<br> ...<br> ...<br> ...<br>ENDSELECT.</pre> </blockquote> <p>Select...Check</p> <blockquote> <pre>SELECT * FORM SPFLI.<br> CHECK SPFLI-CARRID = ’LH’.<br> ...<br> ...<br> ...<br>ENDSELECT.</pre> </blockquote>In above logic, Select...Where is better than Select...Check because the database can then user an index and system resource load is considerably less. </div> <div class="links"> <ul class="links inline"> <li class="first blog_usernames_blog"><a href="/blog/thitima" title="Read thitima's latest blog entries." class="blog_usernames_blog">thitima's blog</a></li> <li class="comment_add">Add new comment</li> <li class="last statistics_counter"><span class="statistics_counter">955 reads</span></li> </ul> </div> </div> <div class="node" id="node-168"> <h2 class="title"><a href="/select-into-table-select-append-in-abap-4">SELECT...INTO TABLE & SELECT...APPEND in ABAP/4</a></h2> <div class="meta with-taxonomy"> <div class="submitted"> Posted January 19th, 2006 by <a href="/user/thitima" title="View user profile.">thitima</a> </div> <div class="taxonomy"> <ul class="links inline"> <li class="first taxonomy_term_4"><a href="/taxonomy/term/4" rel="tag" title="" class="taxonomy_term_4">ABAP/4</a></li> <li class="taxonomy_term_21"><a href="/english" rel="tag" title="" class="taxonomy_term_21">English</a></li> <li class="taxonomy_term_2"><a href="/taxonomy/term/2" rel="tag" title="" class="taxonomy_term_2 active">Programming</a></li> <li class="taxonomy_term_35"><a href="/topic/it/software/sap-r-3" rel="tag" title="" class="taxonomy_term_35">SAP R/3</a></li> <li class="last taxonomy_term_27"><a href="/taxonomy/term/27" rel="tag" title="" class="taxonomy_term_27">Tips and Tricks</a></li> </ul> </div> </div> <div class="content"> <p>Select...Into Table</p> <blockquote> <pre><br>DATA: itab LIKE SPFLI OCCURS 0 WITH HEADER LINE.<br>SELECT * FORM SPFLI INTO TABLE itab.</pre> </blockquote> <p>Select...Append</p> <blockquote> <pre>DATA: itab LIKE SPFLI OCCURS 0 WITH HEADER LINE.<br>SELECT * FORM SPFLI INTO itab.<br> APPEND itab.<br>ENDSELECT.</pre> </blockquote>In above logic, Select...Into Table is faster than Select...Append. </div> <div class="links"> <ul class="links inline"> <li class="first blog_usernames_blog"><a href="/blog/thitima" title="Read thitima's latest blog entries." class="blog_usernames_blog">thitima's blog</a></li> <li class="comment_add">Add new comment</li> <li class="last statistics_counter"><span class="statistics_counter">4135 reads</span></li> </ul> </div> </div> <div class="pager"> <a href="/taxonomy/term/2" class="pager-first active" title="Go to first page">« first</a><a href="/taxonomy/term/2?page=36" class="pager-previous active" title="Go to previous page">‹ previous</a><span class="pager-list"><span 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