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MySQL Database Merge
Project Description:
I have two databases, I need merge the data of one database into another
Work to be done online right now.
Payment can be done after work done
Skills required are Database Administration, MySQL
intent locking
Identification of concurrency Identification of concurrency: Dynamic model identifies concurrency. Two objects are said to be parallel (concurrent) if they can receive events a
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational model is an ex
To eliminate duplicate rows (distinct operator) Example: SELECT DISTINCT DEPTNO FROM EMP;
1 NF Normal Form The domain of attribute must add only atomic (simple, indivisible) values First normal form (Minimal Form or 1NF) is a normal form need in database normalizat
Consider the subsequent relations for a database which keeps track of business trips of salespersons in a sales office: SALESPERSON (SSN, Name, start_year, Dept_no) TRIP (SSN, Fr
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Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
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