sql - Select rows WHERE any row in column is equal to 1 or if not, column is equal to 2, but not both -


i have got translation table text like:

table: todos

day | text_id -------------  0  | 1  1  | 2  1  | 1

table: translations

lang | text_id | text ---------------------  deu | 1       | laufen  eng | 1       | running  eng | 2       | swimming

now want lookup todos in german (deu). problem is, don´t have translation (e.g.) text_id 2: swimming in german.

my default query be:

select todos.day, translations.text   inner join translations   on todos.text_id = translations.text_id   translations.locale = 'deu';

i get:

day | text --------------  0  | laufen  1  | laufen

but want:

day | text --------------  0  | laufen  1  | swimming  1  | laufen

how can missing rows? first should needed rows with:

select todos.day, translations.text   inner join translations   on todos.text_id = translations.text_id   translations.locale = 'deu' or translations.locale = 'eng';

and remove 'eng' duplications - how?

sorry terrible title, don´t know how describe ...

you need left join keep records in first table. need twice english records default:

select td.day, coalesce(tdeu.text, teng.text) text todos td left join      translations tdeu      on td.text_id = tdeu.text_id , tdeu.locale = 'deu' left join      translations teng      on td.text_id = teng.text_id , teng.locale = 'eng';

Comments

Post a Comment

Popular posts from this blog

c# - Validate object ID from GET to POST -

i have method allows user access comment have made on site. have post method lets them update comment. my normal solution send entire comment model through, let them update it, update on database when post back. involve sending commentid through in hiddenfor , can manipulated. how can verify commentid sent in get method same i'm getting in post , not able alter comment wish? how can verify commentid sent in method same i'm getting in post? basically have validate following things in post - user logged-in user. authenticated users post comments. commentid in post , should valid commentid , should present in database. userid associated logged-in user should same userid associated comment . comment should contain userid column, can check @ time of update. to make sure update happens comment has been sent in get - hold commentid in session , in post action compare commentid value in session .
Read more

node.js - Custom Model Validator SailsJS -

when using custom model validator checks record within model. return within spread doesn't seem end control flow. //post.js model /** * custom validator **/ types: { isuservalid: function(user_id) { var promise = require('bluebird'); promise.all([ user.findone({id: user_id}) ]) .spread(function(user) { console.log(user); if (user === null || user === undefined) { console.log('failed'); return false; }else{ console.log('passed'); return true; } }); } }, my response standard validation failed response. { "error": "e_validation", "status": 400, "summary": "1 attribute invalid", "model": "post", "invalidattributes": { "owner": [ { "rule": "isuservalid", ...
Read more

php - Find a regex to take part of Email -

i have following emails need extract part from: bestellnummer xxx: 1 von xxx, 1er pack ------------- anfang der nachricht ------------- foo bar baz foo bar baz // <<<<< need text here ------------- ende der nachricht ------------- ------------- anfang der nachricht ------------- foo bar baz foo bar baz ------------- ende der nachricht ------------- there 0 unlimited occurences of ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- and i'm able extract first part regex: $re = "/------------- .*? -------------.?(.*?).?------------- .*? -------------/s"; but, i'm quite new on learning regex, i'm pretty sure there must better regex extract part (foo bar baz foo bar baz) of text between ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- as can in different languages, i'm using .? to match between hyphens. i...
Read more