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What is SQL, and why is it important?
SQL stands for Structured Query Language, and is the most significant data processing language in use today. It is not a complete programming language like Java or C#, but a data sublanguage used for creating and processing database data and metadata.
All DBMS products today use SQL.
please i request for your assistance in developing a case-based online phone repair
Example :; transfers transfer_amount from x's account to y's account ; Supposes x&y both accounts exist TRANSACTION (x, y, transfer_amount) Start transaction IF X AND Y
Define access time. Access time is the time from when a read or write request is issued to when data transfer starts.
Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
i want notes on this topic
Sparse and Dense Indexes These indexes in principle are the similar as that of indexes used at the back of the book. The key facts of the indexes are: They are arranged
What is the full form of DDL? DDL is stand for Data Definition Language.
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
Example -Find the employee name, salary, department number and average salary of his/her department, for those employees whose salary is more than the average salary of that depart
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