unique_开发者

How do you use a multiple field unique key in a NOT IN statement?

I have a unique key that is going to be run through a NOT IN statement.How do you accomplish this? SELECT DROPPER_ID, BEGIN_DT, END_DT[详细]

2023-03-19 14:50 分类：问答

Select a subgroup of records by one distinct column

Sorry if this has been answered before, but all the related questions didn\'t quite seem to match my purpose.[详细]

2023-03-18 20:19 分类：问答

PHP ordered Unique ID

Hello I hope someone could help me cus Iam little bit confused about task I have to do in PHP I need php file that is unique registration ID with these parameters:[详细]

2023-03-18 19:14 分类：问答

PHP base_convert?

Will the outp开发者_StackOverflow社区ut prododuced by the following function always be unique? base_convert(uniqid(), 10, 36);[详细]

2023-03-18 13:08 分类：问答

Identifying the field which is being duplicated!

I have this registration form which has several Unique fields. Now on insertion, I want to detect all the fields on which the duplicate values were tried. How can I do that? I am using MySQL server 5.[详细]

2023-03-18 08:30 分类：问答

PHP fetch unique random value from database

I\'ve been working with PHP quiz program and I\'m a bit lost on fetching unique random value from database. Currently here is my script.[详细]

2023-03-17 18:53 分类：问答

MySQL Retrieve Records Where Criteria is Unique and True i.e. No other records exist

I have a legacy database that I am working with a basic column layout as such: SampleID CompanyID CompanyApplication[详细]

2023-03-17 06:44 分类：问答

MYSQL: Two fields as PRIMARY KEYs + 1 Field as UNIQUE, a question

I have two primary (composite) keys that refer to a shop and a branch. I thought I should have used a corresponding ID for each row, so I added a UNIQUE + AUTO_INCREMENT named ID.[详细]

2023-03-15 21:34 分类：问答

How might I retrieve unique records from this table?

I have two tables: CardInfo and CardItems, so each CardInfo may have multiple CardItems. I need a SQL query to fetch unique records from CardInfoon the basis of some conditions which relates with both[详细]

2023-03-15 19:57 分类：问答

java for loop executes too fast gives System.currentTimeMillis() duplicate

Java: I have a problem using System.currentTimeMillis() function i am using System.currentTimeMillis() to generate unique values in foor loop problem is loop executes too fast and System.currentTimeM[详细]

2023-03-15 09:59 分类：问答