primary-key

I have a database with 3 columns: id, name, somethingelse This table has no index set and i am getting "No index defined!" in phpmyadmin id is a 7digit alphanumeric value, unique to each row. I want to set Drugid to be the primarykey/index (i dont know the difference if there is one) Please explain in detail as i am new to this. Thank you. Either run in SQL: ALTER TABLE tableName ADD PRIMARY KEY (id) ---or Drugid, whichever you want it to be PK or use the PHPMyAdmin interface (Table Structure) ALTER TABLE your_table ADD PRIMARY KEY (Drugid); If you want to do it with phpmyadmin interface:

I'm on the cusp of starting work on a new webapp. Part of this will give users pages that they can customise in a one to many relationship. These pages naturally need to have unique URLs. Left to its own devices, Django would normally assign a standard AUTOINCREMENT ID to a model. While this works fantastically, it doesn't look great and it also makes pages very predictable (something that isn't desired in this case). Rather than 1, 2, 3, 4 I would like set-length, randomly generated alphanumeric strings (eg h2esj4). 6 spots of a possible set of 36 characters should give me over two billion

First off, I'm relatively new to Google App Engine, so I'm probably doing something silly. Say I've got a model Foo: class Foo(db.Model): name = db.StringProperty() I want to use name as a unique key for every Foo object. How is this done? When I want to get a specific Foo object, I currently query the datastore for all Foo objects with the target unique name, but queries are slow (plus it's a pain to ensure that name is unique when each new Foo is created). There's got to be a better way to do this! Thanks. I've used the code below in a project before. It will work as long as the field on

I am sorry to ask this but I come from codeIgniter and have a really hard time understanding eloquent model insertion. This is a new way of working with models for me. i have read this article and understand some basics now. I have the following example. I have a product which has many attributes but the relevant one is brand and product name. (see the following example tables) products: id(PK),name,description,brand_id brands: id(PK),name Now here comes the problem. I know i can create a new brand and I know how I can create a new product. However I have no qlue how to connect the two

I was wondering can some give me an explanation on how to assign primary and foreign keys in pgAdmin? I can't find any information online. For example...I've got a Student table with all their details (address, d.o.b. and etc.). I'm going to add a student_number to the table and make it a primary key. I just want to know how do I do that using pgAdmin? And if you may be kind to explain give me further information on using Primary Keys in postgreSQL (and pgAdmin). The same case with the foreign keys. There is no option in pgAdmin to add a column to an existing table and make it the primary key

is there any chance that I can execute the below sql statement successfully? Currently, I'm receiving Primary Key Violation on my query below. What I want is that, when the first record was inserted in the target table and if there is another same primary key that will be inserted, it should be execute an UPDATE not INSERT to avoid the primary key violation, but I don't know to write it in actual sql script. As of know, I only have the below script. // User-Defined Tabled Type DECLARE @tvpEmailType dbo.EmailType INSERT @tvpEmailType VALUES ('mail@mail.com', 1) INSERT @tvpEmailType VALUES (

The program is not accepting the query given below- public class loginDaos { public void create(loginBean bean) { ConnectionPool c = ConnectionPool.getInstance(); c.initialize(); Connection con = c.getConnection(); try { String sql = "INSERT INTO login VALUES(?,?,?,?)"; PreparedStatement pstmt = con.prepareStatement(sql); pstmt.setString(1, bean.getCode()); pstmt.setString(2, bean.getUserid()); pstmt.setString(3, bean.getPassword()); pstmt.setString(4, bean.getPosition()); pstmt.executeUpdate(sql); } } catch (Exception e) { e.printStackTrace(); } } public static void main(String args[]) {

Good day, I have a table in db2, where the primary is_autoincrement is set to Yes . Means that everytime insert data to this table, no need to pass in the primary key value, because it will auto generate. However, I need to get back the primary key value after insertion. The code is something as follow: public integer insertRecord() { //insertion sql code here KeyHolder keyHolder = new GeneratedKeyHolder(); PreparedStatementCreatorFactory factory = new PreparedStatementCreatorFactory( getInsertBatch2( ), new int[] { java.sql.Types.TIMESTAMP, java.sql.Types.VARCHAR, java.sql.Types.SMALLINT,

Below is the sample code of my Stored Procedure in which I am working on for interest calculation. This code is not executable because according to finding its getting issue while defining creating temporary table block before the cursor declaration but if I define same thing recently after cursor declaration then it's executing successfully. 1- My question is I am using that table inside cursor so I must have to define after cursor or I have missed anything ?? CREATE PROCEDURE `sp_interest_calculation_test`( IN sub_type CHAR(1) ) BEGIN DECLARE s_ledger_id INT; DECLARE s_start, s_end, s_tran