Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

Update the database field one less than available

Demir last edited by
Like, I have a number seven in my field.
What's one sql - a request to do six?
Now's what I'm doing, what I'm calling a spleen first, getting a lot of pros and then I'm going to update it.
```
UPDATE tracker_users SET `yellow` = '?' WHERE `id` = '$id_user'
```
How do we do this without extra action?
Reply Quote 0
1 Reply Last reply
M
magpie QA Engineer last edited by
```
UPDATE `table` SET `yellow`=`yellow`-1 WHERE `id`="1"
```
Reply Quote 0
1 Reply Last reply

mysql 49766

2
Posts

0
Views

Suggested Topics

Why is the database not being updated?
Software Programming • php mysql • • Marcee

2

0
Votes

2
Posts

0
Views

R

I have no doubt that you've seen an article on the PLO ID, but from what you wrote, you have no idea what it is. Let's start with what if you want PLO, then do it:class Params { } class BaseUpdate { final static function update($plink) { if ($plink->id && $plink->title && $plink->meta1 && $plink->meta2 && $plink->text) { mysql_query("update table set title='".$plink->title."' where id='".$plink->id."';"); // Лень все писать } } } And the challenge is:$p = new Params; $p->id = 1; $p->title = 'some title'; $p->meta1 = 'm1'; $p->meta2 = 'm2'; $p->text = 'text'; BaseUpdate::update($p); It's like an example. I think you can find the use of the PLO where you found the bullshit you wrote:
C

One foreign key for two columns
SQL, Database Testing • mysql foreign key • • charlenef

2

0
Votes

2
Posts

0
Views

D

The query results are correct, as your query finds all teams and results where a team played against itself (home_team = away_team). You probably want to use 2 joins to teams in you query: SELECT home.team_name AS home_team_name, away.team_name AS away_team_name, r.score FROM results AS r JOIN teams AS home ON r.home_team = home.team_id JOIN teams AS away ON r.away_team = away.team_id ;
How to implement editable table by updating the fields in the database automatically
Software Programming • php html jquery ajax • • carriann

2

0
Votes

2
Posts

0
Views

I made some changes to your files, summarizing:Do not use mysql_, use mysqli_When a UPDATE command is executed, the expected result is TRUE and not "mysqli_result" to pass to the mysqli_fetch_assoc function, then you have to change the RunQuery method $result = mysqli_query($this->connection, $query);if (( $result !== false ) && ( $result !== true ) ) { while($row=mysqli_fetch_assoc($result)) { $resultset[] = $row; } } To verify the parameters JQUERY sends during Ajax, build a BeforeSend method.$.ajax({ url: "saveedit.php", type: "POST", data:'column='+column+'&editval='+editableObj.innerHTML+'&id='+id, beforeSend: function(){ console.log('column='+column+'&editval='+editableObj.innerHTML+'&id='+id); }, success: function(data){ $(editableObj).css("background","#FDFDFD"); } }); In the construction of the table, in the first column, you wrote wrong the parameters: answer ? onBlur="saveToDatabase(this,'answer2','<?php echo $faq[$k]["id"]; ?>;')" onKeyDown="checkEnter(event, this,'answer2','<?php echo $faq[$k]["id"]; ?>')" onClick="showEdit(this);"><?php echo $faq[$k]["question"]; ?></td> To see the result download this file: http://angar27.com.br/zzz/otacio.zip
Query JPQL to return only one of the fields
Software Programming • java jpql • • emmalee

2

0
Votes

2
Posts

0
Views

The second parameter https://docs.oracle.com/javaee/7/api/javax/persistence/EntityManager.html#createQuery-java.lang.String-java.lang.Class- indicates which type of data will be returned.When you do SELECT by the whole entity, there it works, after all you indicated that the return of query is NumeroVotosMembro.But when the query only returns one of the fields, then her guy is no longer NumeroVotosMembro. Instead, the return will only be the field, so the type should be the same as the field being returned.For example, if the name is a String, just change the query to return this type:// troque NumeroVotosMembro por String @Override public List<String> ListarNumeros() { TypedQuery<String> consulta = manager.createQuery("select nvm.nome FROM NumeroVotosMembro nvm", String.class); return consulta.getResultList(); } Obs: maybe the name of the method should be listarNomes?Generally, when you do not want all the entity fields, another option is to return each registry as an array of Object:// selecionando o ID e NOME TypedQuery<Object[]> consulta = manager.createQuery("select nvm.id, nvm.nome FROM NumeroVotosMembro nvm", Object[].class); List<Object[]> resultados = consulta.getResultList(); for (Object[] linha : resultados) { System.out.println("id=" + linha[0] + ", nome=" + linha[1]); } Or you can create a custom class that only contains the fields you want:public class CustomObject { private int id; private String nome; public CustomObject(int id, String nome) { this.id = id; this.nome = nome; } // getters, etc... } // e na query você retorna o CustomObject TypedQuery<CustomObject> consulta = manager.createQuery("select NEW CustomObject(nvm.id, nvm.nome) FROM NumeroVotosMembro nvm", CustomObject.class); List<CustomObject> resultados = consulta.getResultList(); But in your case, as you only have one field, the first option above is simpler.
M

MySQL Update Trigger that updates multiple columns from values in another table
SQL, Database Testing • mysql trigger • • magpie

2

0
Votes

2
Posts

0
Views

K

If you want to get right down to it, that's not the best approach from a theoretical perspective, because you're copying data around in your database that you really should be deriving. CREATE ALGORITHM=MERGE VIEW products_with_packaging_info AS SELECT p.*, pt.width as packaging_width, pt.height as packaging_height, pt.weight as packaging_weight, pt.case_count AS packaging_case_count FROM PRODUCTS p JOIN PACK_TYPES pt ON pt.id = p.packaging_type; Done. SELECT queries against this view work exactly the same as queries against either table individually, as long as every product has a pack type. Queries against this view can still take advantage of the indexes on the base tables, and there's no overhead involved with copying the attributes from one table to another, which always has the potential for update anomalies. You might even be surprised to find that the columns in the view can actually be updated as if it were a table, with updates propagating down into the base tables. I offer this suggestion because a well-designed database should be such that it is impossible to get two different answers to the same question. For example, if a PACK_TYPES row is changed because an error is found, how do its new values propagate backwards into products? But if you really want to take the trigger approach, that looks something like this: DELIMITER $$ DROP TRIGGER IF EXISTS PRODUCTS_bu $$ CREATE TRIGGER PRODUCTS_bu BEFORE UPDATE ON PRODUCTS FOR EACH ROW BEGIN IF NOT (NEW.packaging_type OLD.packaging_type) THEN BEGIN DECLARE my_width INT DEFAULT NULL; -- using DECLARE my_height INT DEFAULT NULL; -- the DECLARE my_weight INT DEFAULT NULL; -- appropriate DECLARE my_case_count INT DEFAULT NULL; -- data types here SELECT width, height, weight, case_count FROM PACK_TYPES WHERE id = NEW.packaging_type INTO my_width, my_height, my_weight, my_case_count; SET NEW.width = my_width, NEW.height = my_height, NEW.weight = my_weight, NEW.case_count = my_case_count; END; END IF; END $$ DELIMITER ; The "spaceship" is the "null-safe equality operator" which constrains "NOT [possibly null] = [possibly null]" to always be either TRUE or FALSE; this is needed because [possibly null] != [possibly null] will never be true if either expression is NULL. This is the case because, logically, "NOT (FALSE)" is "TRUE" while "NOT (NULL)" is "NULL." I could have declared the variables at the beginning and avoided the inner BEGIN/END but it seems optimal to avoid that work until we know we actually need to execute the inner logic in the first place, which is avoided whenever 'packaging_type' hasn't actually changed on a row for a given update query. Within a block, declarations have to precede other statements, so delaying the declarations requires the addition of the inner BEGIN/END. You would also want a similar trigger for BEFORE INSERT which would be identical except you'd remove the 4 lines starting with IF ... BEGIN ... END ... END IF from the body of the procedure, use a new trigger name, and change BEFORE UPDATE to BEFORE INSERT. It's BEFORE -- not AFTER -- in both cases, because the trigger fires BEFORE the newly-inserted or newly-updated row is written to the database.
A

Combination of several requests mysql
Software Programming • mysql mariadb 10.0 • • Anderson

2

0
Votes

2
Posts

0
Views

T

SELECT * FROM `data` WHERE `id` IN (1, 2, ..);
M

How to connect to different mysql databases with php from android studio?
Software Programming • php java mysql android volley • • meriah

2

0
Votes

2
Posts

0
Views

A

Actually you can create a connection library and pass the parameters in real time or execution time, so you can send the connection to the database you want at that time and not a fix.conn.php<?php function dbConnector($params){ $root = $params['root']; $usuario = $params['usuario']; $password = $params['password']; $base = $params['base']; $mysqli = new mysqli($root, $usuario, $password, $base); if($mysqli->connect_errno) { die("Fallo la conexion"); } else { return $mysqli; } } ?> GetCompany.php<?php require "conn.php"; // en este array puedes remplazar los valores por los que recibas de Android Studio o tu app y de tal manera lograras una conexión dinámica $mysqli = dbConnector([ 'root'=>'Mi localhost', 'usuario'=>'Mi usuario', 'password'=>'Mi contraseña', 'base'=>'El nombre de mi base de datos' ]); $sql = "SELECT nombre_empresa, logo_empresa, correo_empresa, facebook_empresa, animacion_empresa, red, green, blue FROM empresa"; $query = $mysqli->query($sql); $datos = array(); while($resultado = $query->fetch_assoc()) { $datos[] = $resultado; } echo json_encode(array("Empresa" => $datos)); mysqli_close($mysqli); ?> What I did not see in your code if you tried, is to send from Android Studio to PHP the 4 Connecting variables.there are two ways to communicate android with a server that executes php:do it for cmd if they're on the same platform.do so with a http request.I will explain the second because I have no example of the first and the second is the most common one for me to understand:URL url = new URL("http://yoururl.com"); HttpsURLConnection conn = (HttpsURLConnection) url.openConnection(); conn.setReadTimeout(10000); conn.setConnectTimeout(15000); conn.setRequestMethod("POST"); conn.setDoInput(true); conn.setDoOutput(true); List<NameValuePair> params = new ArrayList<NameValuePair>(); params.add(new BasicNameValuePair("name", "Chatura")); OutputStream os = conn.getOutputStream(); BufferedWriter writer = new BufferedWriter( new OutputStreamWriter(os, "UTF-8")); writer.write(getQuery(params)); writer.flush(); writer.close(); os.close(); conn.connect(); where params.add(new BasicNameValuePair("name", "Chatura")); adds the variables to be sent to the php server https://stackoverflow.com/a/32644195/4717133 .The last thing you commented on is that you use volley in that case the parameters are added like this:public class LoginRequest extends Request<String> { // ... other methods go here private Map<String, String> mParams; public LoginRequest(String param1, String param2, Listener<String> listener, ErrorListener errorListener) { super(Method.POST, "http://test.url", errorListener); mListener = listener; mParams = new HashMap<String, String>(); mParams.put("paramOne", param1); mParams.put("paramTwo", param2); } @Override public Map<String, String> getParams() { return mParams; } } Documentation related to Volley: https://stackoverflow.com/a/16639438/4717133
J

First sample with bd
Software Programming • javascript php mysql • • juvenalb

2

0
Votes

2
Posts

0
Views

How about that?while ($row = mysql_fetch_array($result, MYSQL_NUM)) { echo "<script type=\"text/javascript\"> $(function(){ $('#mydiv').text('Номер телефона: ' + ($('#cp_id_626').text().indexOf('" .$row['name'] . "') != -1 ? '".$row['email'] ."' : '+77777777')); }); </script>"; } ?
Modified greater than one and less than the other
Software Programming • javascript • • Analeea

2

0
Votes

2
Posts

0
Views

B

if ( Xday > 1 && Xday < 5){ } " .There's no logic.You can write that again:function between(x,a,b){ "use strict"; return (x>a and x<b); } Use: between(x,1,5); You can try to overthrow x.between(1.5), but for that, either you have to create object x every time, or add properties to built-in objects, which is very, very as long as you're with js:
By updating one scope variable, update another with the same Angular value2
Software Programming • angularjs 2.0 angularjs sc languageope • • morde

2

0
Votes

2
Posts

0
Views

D

More than a Scopes error, it is a program concept error. When you turn the value of an object, do not return the object in the variable if you create a reference to it, which explains what is happening to you.Once you pass the first capture, they both point to the same space. of memory where the object is found.When you get to the second image, change resultList but it also affects copieResultList because you're really changing the object that you're both pointing at.
C

What are the relationships in SQL: One to one, one to several, several to several?
Software Programming • sql relational algebra • • Cleofas

2

0
Votes

2
Posts

0
Views

A

Some examples of application could be:Relationship one to one:A person can only have a nose and a nose can only have one person.A population register (CURP in Mexico) can only have one person and one person can only have a curp.Relationship one to severalA parent may have many children but a child can only have a father.A cart can have many wheels (In this case you restrict one to 4 in the most common case) and a tire can only have a car. Depending on the context in which you work and being more practical you can have that a customer can be served only by a seller but a seller can have many customers. Relationship many to manyMany customers can buy many products and many products can be purchased by many customers. Many friends may have many friends. In a system many users can access many modules.The main idea is to first take into account that type of interaction we will have with the data and this data that type of interaction will have with whom it is related. Speaking in database schemes usually in a first step you create the identities you need, simply without entering into details. Then you apply normal forms for each level. According to theory, more than enough is grade 3 of normalization. For this point the relationships between the tables are more than clear. Something about this: https://es.wikipedia.org/wiki/Normalizaci%C3%B3n_de_bases_de_datos#Tercera_Forma_Normal_.283FN.29 Knowing this and an idea I use questions like:How many times will I repeat a data on the table? How many times am I gonna call him? Who are you pointing at? Do you have a single identifier?Then the answer number (to whom do you point? = 3 tables) It tells me that the relationship is at least one to three or more, if you don't want to limit it. Well, it's a little idea how I resolve this dilemma.
mysql to mongodb migration
SQL, Database Testing • mysql mongodb migration • • Analeea

2

0
Votes

2
Posts

0
Views

A

Export that table to JSON format (f.ex. MySQL Workbench) and use mongoimport to import it.
E

Calculation of values between Mysql tables
Software Programming • mysql sql • • emerson

2

0
Votes

2
Posts

0
Views

O

If you need to get the difference:SELECT (s.kol - z.kol) FROM sirovyna s JOIN zayavki z ON s.id = z.id AND s.naim = z.naim; This is if the first table needs to be changed:UPDATE sirovyna AS s JOIN zayavki AS z ON s.id = z.id AND s.naim = z.naim SET s.kol = (s.kol - z.kol);
F

Just pull me out of a database field in the XML
Software Programming • php mysql xml • • fbio

2

0
Votes

2
Posts

0
Views

E

Apparently your problem is on your cycle tour. In the assignment the foreach decomposes you by going through your arrangement, for example:$a = array(); $a[0][0] = "a"; $a[0][1] = "b"; $a[1][0] = "y"; $a[1][1] = "z"; foreach ($a as $v1) { //le envía a $v1 {0,1} de la primera posición del arreglo $a foreach ($v1 as $v2) { //le envía a $v2 {0,1} de la segunda posición del arreglo $a echo "$v2\n"; //por lo que imprimiría "a,b,y,z" } } //Si te fijas no hay necesidad de incrementar la variable para recorrer. In your case I believe your solution would be as follows:foreach ($data as $key) { foreach ($key => $value) { $xml->startElement('producto'); $xml->writeAttribute('id',$value['id']); $xml->writeElement('nombre',$value['nombre']); $xml->writeElement('descripcion',$value['descripcion']); $xml->writeElement('imagen', $value['name_img']); $xml->endElement(); } } I hope to help you, here the https://php.net/manual/es/control-structures.foreach.php . Greetings.
D

Update does not work in the database
Software Programming • php html mysql • • Duquan

2

0
Votes

2
Posts

0
Views

J

The problem is in the first if that will always return true if there are data in the table tests and will never enter elseif to run update, try to change that elseif by only if and do it submit the form again. See below:Simplifying your code for better understanding./* Você faz um select na tabela e testa * se houverem dados da tabela, então faça */ if ($row = $result->fetch(PDO::FETCH_ASSOC)){ ... } //Aqui você testa senão houverem dados na tabela e se houver o post, então faça elseif (isset($_POST['Submit'])) { ... } So update does not occur, change elseif by if://Se houverem dados da tabela, então if ($row = $result->fetch(PDO::FETCH_ASSOC)){ ... } //Se houver o post, então if (isset($_POST['Submit'])) { ... }

Update the database field one less than available

Suggested Topics

Why is the database not being updated? Software Programming • php mysql • • Marcee

One foreign key for two columns SQL, Database Testing • mysql foreign key • • charlenef

How to implement editable table by updating the fields in the database automatically Software Programming • php html jquery ajax • • carriann

Query JPQL to return only one of the fields Software Programming • java jpql • • emmalee

MySQL Update Trigger that updates multiple columns from values in another table SQL, Database Testing • mysql trigger • • magpie

Combination of several requests mysql Software Programming • mysql mariadb 10.0 • • Anderson

How to connect to different mysql databases with php from android studio? Software Programming • php java mysql android volley • • meriah

First sample with bd Software Programming • javascript php mysql • • juvenalb

Modified greater than one and less than the other Software Programming • javascript • • Analeea

By updating one scope variable, update another with the same Angular value2 Software Programming • angularjs 2.0 angularjs sc languageope • • morde

What are the relationships in SQL: One to one, one to several, several to several? Software Programming • sql relational algebra • • Cleofas

mysql to mongodb migration SQL, Database Testing • mysql mongodb migration • • Analeea

Calculation of values between Mysql tables Software Programming • mysql sql • • emerson

Just pull me out of a database field in the XML Software Programming • php mysql xml • • fbio

Update does not work in the database Software Programming • php html mysql • • Duquan

Why is the database not being updated?
Software Programming • php mysql • • Marcee

One foreign key for two columns
SQL, Database Testing • mysql foreign key • • charlenef

How to implement editable table by updating the fields in the database automatically
Software Programming • php html jquery ajax • • carriann

Query JPQL to return only one of the fields
Software Programming • java jpql • • emmalee

MySQL Update Trigger that updates multiple columns from values in another table
SQL, Database Testing • mysql trigger • • magpie

Combination of several requests mysql
Software Programming • mysql mariadb 10.0 • • Anderson

How to connect to different mysql databases with php from android studio?
Software Programming • php java mysql android volley • • meriah

First sample with bd
Software Programming • javascript php mysql • • juvenalb

Modified greater than one and less than the other
Software Programming • javascript • • Analeea

By updating one scope variable, update another with the same Angular value2
Software Programming • angularjs 2.0 angularjs sc languageope • • morde

What are the relationships in SQL: One to one, one to several, several to several?
Software Programming • sql relational algebra • • Cleofas

mysql to mongodb migration
SQL, Database Testing • mysql mongodb migration • • Analeea

Calculation of values between Mysql tables
Software Programming • mysql sql • • emerson

Just pull me out of a database field in the XML
Software Programming • php mysql xml • • fbio

Update does not work in the database
Software Programming • php html mysql • • Duquan