Databases
StackOverflow2013
Postsdbo
POsqlite how to add value on conflict
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POsqlite how to add value on conflict
    primarykey
    data
    text
    <p>I have a database with product name,product price and product counter. Product name is unique,product price gets replaced everytime a new value is entered and the problem is the product counter. Its default value is <code>1</code>,when a new product is entered his value is set to 1.I need it to increment whenever there is a conflict for the product name.So if <code>Cheese</code> is entered twice,the counter will say <code>2</code> and so on. What i need it to do is when there is a conflict,add 1 to its value. I want to do it this way because i'll need this later.I'll need to add the inputed value to the table value on some other thing i plan to implement in my app.</p> <p>How can i achieve this ? I'd like to keep doing it the way i'm doing it now,with the <code>contentvalues</code> method of inserting and not with the sqlite syntax(<code>INSERT,SELECT,etc</code>).Is that even possible ? Cuz i'm an absolute 0 at sqlite syntax.And also,i need it to have a method that i can call in other activities to insert into the database (like <code>insertCountry(Japan,10)</code>)</p> <pre><code>public class SQLiteCountryAssistant extends SQLiteOpenHelper { private static final String DB_NAME = "usingsqlite.db"; private static final int DB_VERSION_NUMBER = 1; private static final String DB_TABLE_NAME = "countries"; private static final String DB_COLUMN_1_NAME = "country_name"; private static final String DB_COLUMN_2_NAME = "country_price"; private static final String DB_COLUMN_3_NAME = "country_counter"; private static final String DB_CREATE_SCRIPT = "create table " + DB_TABLE_NAME + " (_id integer primary key autoincrement, country_name text UNIQUE ON CONFLICT REPLACE,country_price text,country_counter integer default '1' );)"; </code></pre> <p>And this is how i insert :</p> <pre><code>public void insertCountry(String countryName, String countryPrice) { sqliteDBInstance.execSQL("INSERT INTO " + DB_TABLE_NAME + "(country_name, country_price) VALUES('" + countryName + "', '" + countryPrice + "')"); } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USSorin Grecu
    1. USSorin Grecu
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COi don't understand what are you trying to achieve (is this a shopping cart or something else?). BTW, if I insert 3 times Cheese with a price of €3, the result on your database will be: Cheese 9(price) 3(counter)? If i'm wrong, please modify your question and make it more readable.
      singulars
      1. POsqlite how to add value on conflict
      1. USJJ86
    2. COYes,it's something like a shopping cart.The database needs to save the product name(for an autocomplete field),the last price that was used for that product(for an autocomplete field as well) and a counter to know how many times a product name has been used.So if you insert Cheese 3 times the price will be 3 and the counter will also be 3.I also modified the way i insert data,edit will come soon.if you need more info,please tell me
      singulars
      1. POsqlite how to add value on conflict
      1. USSorin Grecu
    3. COi've edited my answer, check it out.
      singulars
      1. POsqlite how to add value on conflict
      1. USJJ86
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload