PHP/MySQL select query to go through four related tables in database -


i have select query , insert query follows:

$select_query = mysql_query("select trees, animals table1 gardens > '10000'", $mysql_connection); while ($row = mysql_fetch_array($select_query)) { $trees = $row['trees']; $animals = $row['animals']; $names = ?????????? // in order names, select query should go through table2 , table4  //and assigned names table3. please see schematic picture of tables. $insert_query = mysql_query("insert table6 (new_trees, new_animals, new_name) values ('$trees', '$animals', '$names')", $mysql_connection); }

i want select , insert $trees, $animals , $names table. there no problem $trees , $animals variables, not know how select data $names. seen in schematic picture of tables, table1.id=table2.reference , table2.first_id gets values table4.id.

then, table4.second_id gets values table3.id , table3.name must selected in order satisfy $names variable in above-mentioned $insert_query. sorry if did not explain problem more clearly. please review picture , let me know solution?

schematic illustration of picture

lookup join clauses:

select   t1.id, t1.trees, t1.animals, t3.name   table1 t1   left join table2 t2     on t2.reference = t1.id   left join table4 t4     on t2.first_id = t4.id   left join table3 t3     on t4.second_id = t3.id    // select conditions

Comments

Post a Comment

Popular posts from this blog

android - Get AccessToken using signpost OAuth without opening a browser (Two legged Oauth) -

i using signpost oauth access data magento server. have read various tutorials on same , reach point open browser user can enter credentials. however, per requirement have automate part. hence, user should not browser page. have set-up done on server side ( magento ), hit url , returned call page. same through program in android. i have tried below, consumer = new commonshttpoauthconsumer(key, secret); provider = new commonshttpoauthprovider(oauth_init_url,access_token_url, authorize_url); try { provider.retrieverequesttoken(consumer, oauth.out_of_band); log.d("tokens" , consumer.gettoken() + " -- " + consumer.gettokensecret()); } and request tokens. dont know how bypass next step. tried directly accessing accesstoken (stupid of me) provider.retrieveaccesstoken(consumer, "mycallback://callback"); no luck, ends in oauth.signpost.exception.oauthnotauthorizedexception: authorization failed (server replied 401). ...
Read more

org.mockito.exceptions.misusing.InvalidUseOfMatchersException: mockito -

getting error org.mockito.exceptions.misusing.invaliduseofmatchersexception: invalid use of argument matchers! 1 matchers expected, 2 recorded. exception may occur if matchers combined raw values: //incorrect: somemethod(anyobject(), "raw string"); when using matchers, arguments have provided matchers. example: //correct: somemethod(anyobject(), eq("string matcher")); at when( getprogramservice .callservice(any(getprogramtype.class))) .thenreturn(jaxbresponse); please explain error , possible resolution the code posted looks fine; don't see problem it. code before or above causing exception. key here: invalid use of argument matchers! 1 matchers expected, 2 recorded. any , used above, doesn't return "special kind of null" or "special kind of getprogramtype"; don't exist. instead, returns null , side effect puts matcher on stack. whe...
Read more

google shop client API returns 400 bad request error while adding an item -

i'm working on solution add items in google shopping market java application. following tutorial real mess because of missing classes of laste release, after setting 1.5-beta maven managed make base example typecheck correctly classes. still can make simple task of adding 1 item. instead of posting whole code i'm posting part creates product feed. private product createproduct(string id) { product product = new product(); product.title = "red wool sweater"; product.content = new content( "text", "comfortable , soft, sweater keep warm on " + "cold winter nights. red , blue stripes."); product.appcontrol = new appcontrol(); product.appcontrol.addrequireddestination("productads"); product.externalid = id; product.lang = "it"; product.country = "it"; product.condition = "nuovo"; product.price = new price("eu...
Read more