www.webdeveloper.com
Results 1 to 3 of 3

Thread: loop SQL!

  1. #1
    Join Date
    Feb 2012
    Location
    youTUBE
    Posts
    234

    loop SQL!

    I have seen many SQL Users searching for this form of SQL query which double searches one table using two or more primary crieteria. The minimal query form suits a collection of records in a table with a start,end and intermediate recorded steps. It can be modified to include an ID.

    select StepOne.Result as MainResult
    from
    (select
    if(locate('Condition1', column1) > 0, column2, null) as Result
    from
    TABLEname) as StepOne
    join TABLEname
    on
    TABLEname.Column3=StepOne.Result
    and StepOne.Result is not null
    and TABLEname.Column1="Condition Two"
    group by StepOne.Result desc

  2. #2
    Join Date
    Feb 2012
    Location
    youTUBE
    Posts
    234
    Here is/was a live http://www.wyc3.com example

    select
    p.f1
    as
    LibraryCard,count(wyc918_sys1.tagrequests1.cause)
    as
    frequency,
    wyc918_sys1.tagrequests1.cause
    from(
    (select cause,
    if(locate('Card', cause) > 0, name, null) as f1
    from
    wyc918_sys1.tagrequests1) as p
    join wyc918_sys1.tagrequests1
    on
    wyc918_sys1.tagrequests1.tag=p.f1
    and wyc918_sys1.tagrequests1.rdate >= DATE(NOW())
    and wyc918_sys1.tagrequests1.rtime >= TIME(NOW()-INTERVAL 30 min)
    and p.f1 is not null and
    wyc918_sys1.tagrequests1.cause="Access Point")
    group by p.f1 desc
    Outputs:
    LibraryCard============= frequency== cause
    20120305-202244-82821289====3====Access Point

  3. #3
    Join Date
    Feb 2012
    Location
    youTUBE
    Posts
    234

    sitepagehits

    Here is an easy one:
    My Site Front Page Hits.
    Code:
     
    select 
    hour(rtime)as 'GMT',
    count(hour(rtime)) as 'Hits-by-hour'
        from
            wyc918_sys1.tagrequests1
    where
     wyc918_sys1.tagrequests1.rdate >= DATE(NOW()) 
    and cause='Card'
    group  by rdate,hour(rtime)
    desc
    Outputs:
    GMT Hits-by-hour
    23 3
    22 1
    20 1
    19 1
    17 1
    14 1
    13 1
    12 1
    9 1
    0 1

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
HTML5 Development Center

"

"

X vBulletin 4.2.2 Debug Information

  • Page Generation 0.32562 seconds
  • Memory Usage 2,853KB
  • Queries Executed 15 (?)
More Information
Template Usage (34):
  • (1)SHOWTHREAD
  • (1)ad_footer_end
  • (1)ad_footer_start
  • (1)ad_global_above_footer
  • (1)ad_global_below_navbar
  • (1)ad_global_header1
  • (1)ad_global_header2
  • (1)ad_navbar_below
  • (1)ad_showthread_firstpost_sig
  • (1)ad_showthread_firstpost_start
  • (1)ad_thread_first_post_content
  • (1)ad_thread_last_post_content
  • (1)bbcode_code
  • (4)bbcode_quote
  • (1)footer
  • (1)forumjump
  • (1)forumrules
  • (1)gobutton
  • (1)header
  • (1)headinclude
  • (1)headinclude_bottom
  • (3)memberaction_dropdown
  • (1)navbar
  • (4)navbar_link
  • (1)navbar_moderation
  • (1)navbar_noticebit
  • (1)navbar_tabs
  • (2)option
  • (3)postbit
  • (3)postbit_onlinestatus
  • (3)postbit_wrapper
  • (1)spacer_close
  • (1)spacer_open
  • (1)tagbit_wrapper 

Phrase Groups Available (6):
  • global
  • inlinemod
  • postbit
  • posting
  • reputationlevel
  • showthread
Included Files (26):
  • ./showthread.php
  • ./global.php
  • ./includes/class_bootstrap.php
  • ./includes/init.php
  • ./includes/class_core.php
  • ./includes/config.php
  • ./includes/functions.php
  • ./includes/functions_navigation.php
  • ./includes/class_friendly_url.php
  • ./includes/class_hook.php
  • ./includes/class_bootstrap_framework.php
  • ./vb/vb.php
  • ./vb/phrase.php
  • ./includes/functions_facebook.php
  • ./includes/functions_calendar.php
  • ./includes/functions_bigthree.php
  • ./includes/class_postbit.php
  • ./includes/class_bbcode.php
  • ./includes/functions_reputation.php
  • ./includes/functions_notice.php
  • ./packages/vbattach/attach.php
  • ./vb/types.php
  • ./vb/cache.php
  • ./vb/cache/db.php
  • ./vb/cache/observer/db.php
  • ./vb/cache/observer.php 

Hooks Called (70):
  • init_startup
  • friendlyurl_resolve_class
  • init_startup_session_setup_start
  • database_pre_fetch_array
  • database_post_fetch_array
  • init_startup_session_setup_complete
  • global_bootstrap_init_start
  • global_bootstrap_init_complete
  • cache_permissions
  • fetch_threadinfo_query
  • fetch_threadinfo
  • fetch_foruminfo
  • load_show_variables
  • load_forum_show_variables
  • global_state_check
  • global_bootstrap_complete
  • global_start
  • style_fetch
  • global_setup_complete
  • showthread_start
  • showthread_getinfo
  • strip_bbcode
  • friendlyurl_clean_fragment
  • friendlyurl_geturl
  • forumjump
  • cache_templates
  • cache_templates_process
  • template_register_var
  • template_render_output
  • fetch_template_start
  • fetch_template_complete
  • parse_templates
  • fetch_musername
  • notices_check_start
  • notices_noticebit
  • process_templates_complete
  • friendlyurl_redirect_canonical
  • showthread_post_start
  • showthread_query_postids
  • showthread_query
  • bbcode_fetch_tags
  • bbcode_create
  • showthread_postbit_create
  • postbit_factory
  • postbit_display_start
  • postbit_imicons
  • bbcode_parse_start
  • bbcode_parse_complete_precache
  • bbcode_parse_complete
  • postbit_display_complete
  • memberaction_dropdown
  • tag_fetchbit_complete
  • forumrules
  • navbits
  • navbits_complete
  • build_navigation_data
  • build_navigation_array
  • check_navigation_permission
  • process_navigation_links_start
  • process_navigation_links_complete
  • set_navigation_menu_element
  • build_navigation_menudata
  • build_navigation_listdata
  • build_navigation_list
  • set_navigation_tab_main
  • set_navigation_tab_fallback
  • navigation_tab_complete
  • fb_like_button
  • showthread_complete
  • page_templates