r937
SQL Consultant
Devshed Supreme Being (6500+ posts)
- Join Date
- February 25th, 2003
- Last Activity
- Today 02:52 PM
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Older Activity
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i'm sure if you searched hard you could find a bootleg copy of my book on the web not that i'm advocating piracy or anything -- you could always...Today, 02:41 PM1 replies | 39 view(s)
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please note, next time post in the SQL Server forumToday, 08:49 AM4 replies | 86 view(s)
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the problem with your join is that you don't actually want tenants who have no property... so it should be an INNER JOIN instead as for your SUM...Today, 06:19 AM2 replies | 39 view(s)
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use GROUP BY in your queryYesterday, 12:27 PM4 replies | 86 view(s)
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your php variables need to be enclosed in single quotesJuly 29th, 2014, 11:04 AM3 replies | 106 view(s)
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that question is more appropriate for the php forum, not mysqlJuly 28th, 2014, 08:12 AM6 replies | 192 view(s)
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if you do not want to change the design of the table, you could do the translation of numbers into text in phpJuly 28th, 2014, 04:58 AM6 replies | 192 view(s)
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you've already decided on the solution, so why are you asking us?July 27th, 2014, 05:29 PM10 replies | 203 view(s)
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sorry, not familiar with the "without any luck" error message could you describe what actually happened? hint: check the manual for syntax......July 27th, 2014, 11:24 AM1 replies | 75 view(s)
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you cannot say "equals null" -- nothing is equal to null, not even another null you have to say IS NULLJuly 27th, 2014, 11:18 AM1 replies | 99 view(s)
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SELECT t.TopicName , DATE_FORMAT(t.TopicActiveDate, '%M-%d-%Y') AS ActiveDate , COALESCE(m.msg_count,0) AS msg_count ,...July 25th, 2014, 10:52 AM4 replies | 195 view(s)
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this is really tough... you've violated First Normal Form and are now reaping the benefits perhaps the easiest would be to do the translation in...July 25th, 2014, 08:59 AM6 replies | 192 view(s)
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please start by reviewing this thread ==> 2 date ranges. Calculate overlapping time? apply the formula to your situation and let us know how it...July 25th, 2014, 05:00 AM2 replies | 111 view(s)
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please show how the three tables are related (primary and foreign keys)July 25th, 2014, 04:54 AM4 replies | 195 view(s)
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push grouping into subquery derived table in FROM clause versus correlated subquery in SELECT clause -- only a comparison of the EXPLAINs will decide...July 24th, 2014, 08:10 PM3 replies | 138 view(s)
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July 24th, 2014, 05:20 PM3 replies | 147 view(s)
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this would be where you use a subquery to pre-collapse one of the 1-to-many relationships, so that they don't "cross join" with the other oneJuly 24th, 2014, 05:18 PM3 replies | 138 view(s)
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okay, sorry for the confusion TL;DR -- aliases are required in the FROM clause, recommended as hell in the SELECT clause you will smile when...July 24th, 2014, 09:56 AM5 replies | 141 view(s)
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i think your counts in that query will be largely wrong :)July 24th, 2014, 09:11 AM5 replies | 141 view(s)
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some pointers here ==> https://www.google.ca/?gws_rd=ssl#q=site:forums.devshed.com+joining+to+the+same+table+twiceJuly 24th, 2014, 08:44 AM5 replies | 141 view(s)
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please show the original "very heavy" query, along with an EXPLAIN on itJuly 24th, 2014, 06:28 AM10 replies | 203 view(s)
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no i fully expect them to i've just learned to always consider every possibility :) execution time is easy, just run them (remembering to...July 24th, 2014, 04:08 AM5 replies | 172 view(s)
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why wouldn't 456789 match 4567890454? why wouldn't 456789 match 456? why wouldn't 90 also match 4567890454?July 24th, 2014, 04:06 AM11 replies | 252 view(s)
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both look okay to me, but i'm not really a DBA how does execution time compare? oh, and do they actually produce the same results?July 23rd, 2014, 05:49 PM5 replies | 172 view(s)
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i'm pretty sure this was a typo --ON set.bjt_id=set.id have you tried doing it the normal way? SELECT bet.* , set.otherColumn FROM...July 23rd, 2014, 11:37 AM5 replies | 172 view(s)
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could you show us some represenative strings in both tables please, some that will match and some that won't having a hard time figuring out what...July 23rd, 2014, 11:32 AM11 replies | 252 view(s)
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sorry, we do not do homework assignments on this siteJuly 19th, 2014, 03:16 PM1 replies | 175 view(s)
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so, what indexes have you created? presumably that will work however, you don't need code in the SELECT clause because you already know what...July 19th, 2014, 03:14 PM3 replies | 182 view(s)
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July 19th, 2014, 01:59 PM3 replies | 182 view(s)
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closest join
July 24th, 201402:14 PMUser / Points
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3000 bonus points for xaprb link -
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Query help
August 24th, 201303:09 AMUser / Points
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i would have expected some kind of suggestion for a new data model and not just the usual diatribe/rant about what's wrong with the current one -
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Display 2 queries in the same table?
November 6th, 201207:56 PMUser / Points
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thanks for taking the time to give examples! very helpful for new developers -
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Update first X rows?
August 21st, 201209:29 PMUser / Points
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what dan said -
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Putting condition in ON clause or WHERE clause
August 17th, 201209:18 AMUser / Points
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very nicely explained, great tutorial -
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Trying to get a count of certain records - PHP/MYSQL
January 13th, 201202:04 PMUser / Points
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nice explanation, guelphdad
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Problem with slow query
October 18th, 201103:47 PMUser / Points
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stefan is my tuning hero
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Complicated table join question.
September 15th, 201108:29 AMUser / Points
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sweet
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Help with a query
June 5th, 201108:21 AMUser / Points
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lol
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Urgent help Find Replace Query
June 21st, 201009:36 AMUser / Points
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nicely explained
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Case Statement On Thread
July 28th, 201408:21 AMUser / Points
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duplicate row in inner join
July 13th, 201408:34 AMUser / Points
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double SUM
June 12th, 201406:24 AMUser / Points
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Sniped!
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Select distinct column when all criteria from another column are met/found
May 12th, 201401:12 PMUser / Points
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haven't repped you in a while, and it's good to encourage the newbies who make the right calls. -
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Selecting fields from two tables
March 5th, 201405:22 PMUser / Points
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Query help - Head-To-Head Win/Loss Record
March 1st, 201408:57 PMUser / Points
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Query help - Head-To-Head Win/Loss Record
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Left join weekdays and time interval
February 26th, 201402:51 PMUser / Points
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Query for multiple date ranges at the same time
February 13th, 201407:30 AMUser / Points
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Using Multiple Selects in One Query
January 15th, 201411:16 AMUser / Points
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Wow! Now that is a query!
