SQL and PL/SQL are relational database languages. SQL is a structured query language that adds, deletes, modifies or manipulates the data in the database. PL/SQL is a Procedural language which is an extension of SQL, and it holds the SQL statements within its syntax. The basic difference between SQL and PL/SQL is that in SQL a single query gets executed at a time whereas, in PL/SQL a whole block of code get executed at a time. Let us discuss some more differences between SQL and PL/SQL with … [Read more...]
Difference Between Oracle and SQL Server
Among many Relational Database Management System (RDBMS), the two most popular and widely used are Oracle and SQL Server. There are many fundamental differences between Oracle and SQL Server one of the most important differences between them is the language they use. Oracle uses PL/SQL (Procedure Language SQL), and SQL Server uses T-SQL i.e. Transact-SQL. Let us discuss some more differences between Oracle and SQL Server with the help of the comparison chart shown below. Content: Oracle Vs … [Read more...]
Difference Between ALTER and UPDATE Command in SQL
ALTER and UPDATE are the two modifying commands of SQL. ALTER is used to modify the structure of the relations (Tables) in the database. UPDATE Command is used to modify the data stored in a relation of the database. The basic difference between ALTER and UPDATE Command is that ALTER command is a Data Definition Language command whereas the UPDATE command is a Data Manipulation Language command. Let us discuss the differences between ALTER and UPDATE Command with the help of the comparison … [Read more...]
Difference Between Trigger and Procedure
Trigger and Procedure are Component of Advanced SQL. Trigger and Procedure both perform a specified task on their execution. The fundamental difference between Trigger and Procedure is that the Trigger executes automatically on occurrences of an event whereas, the Procedure is executed when it is explicitly invoked. Let us discuss some more differences between Trigger and Procedure with the help of a comparison chart shown below. Content: Trigger Vs Procedure Comparison Chart … [Read more...]
Difference Between E-R Model and Relational Model in DBMS
E-R Model and Relational Model both are the types of Data Model. Data Model describes a way to design database at physical, logical and view level. The main difference between E-R Model and Relational Model is that E-R Model is entity specific, and Relational Model is table specific. Let us discuss some differences between E-R Model and Relation model with the help of comparison chart shown below. Content: E-R Model Vs Relational Model Comparison Chart Definition Key Differences … [Read more...]
Difference Between GSM and CDMA
In this article, we are going to discuss the two popular technologies that provide multiple accessibilities to a channel GSM and CDMA. The basic difference between GSM and CDMA is that GSM is specific to a SIM card that is used with the mobile phone. On the other hands, the CDMA is handset specific. Let us discuss some more differences between GSM and CDMA in the comparison chart shown below. Content: GSM Vs CDMA Comparison Chart Definition Key Differences … [Read more...]
Difference Between DDL and DML in DBMS
Data Definition Language (DDL) and Data Manipulation Language (DML) together forms a Database Language. The basic difference between DDL and DML is that DDL (Data Definition Language) is used to Specify the database schema database structure. On the other hand, DML (Data Manipulation Language) is used to access, modify or retrieve the data from the database. Let us discuss the differences between DDL and DML, with the help of comparison chart shown below. Content: DDL Vs DML in DBMS … [Read more...]
Difference Between Symmetric and Asymmetric Multiprocessing
There are two types of multiprocessing, Symmetric Multiprocessing and Asymmetric Multiprocessing. Multiprocessing system has more than one processor and they can execute multiple process simultaneously. In Symmetric Multiprocessing, processors shares the same memory. In Asymmetric Multiprocessing there is a one master processor that controls the data structure of the system. The primary difference between Symmetric and Asymmetric Multiprocessing is that in Symmetric Multiprocessing all the … [Read more...]
Difference Between Logical and Physical Address in Operating System
Address uniquely identifies a location in the memory. We have two types of addresses that are logical address and physical address. The logical address is a virtual address and can be viewed by the user. The user can't view the physical address directly. The logical address is used like a reference, to access the physical address. The fundamental difference between logical and physical address is that logical address is generated by CPU during a program execution whereas, the physical address … [Read more...]
Difference Between Long-Term and Short-Term Scheduler in OS
To maximize the CPU utilisation, there must be proper scheduling of the processes. The Long-Term Scheduler and the Short-Term Scheduler, are the types of Scheduler. The Long-Term Scheduler executes less frequently as compared to Short -Term Scheduler. The distinguishable point between Long-Term Scheduler and Short-Term Scheduler is that the Long-Trem Scheduler selects the process from the Job Pool and then load them in the Ready Queue for execution. On the other hand, the Short-Term Scheduler … [Read more...]
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