Hi,
I am new to testing.where we will use SQL in manual testing.
To what extent i need to learn SQl.there are diff types of SQL
like TSql,Mysql etc.i little bit confused,help me.
Thank you .
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Answer Posted / amol
Database : is a concept to organized collection of data
(today typically in digital form).
Database system (DBMS): is software which are created to
implement the above. Today most of DBMS store data using
some relation between the data hence it is called Relational
DBMS (RDBMS)
There are lot of companies who has created this DBMS like
Oracle, IBM DB2, Microsoft SQL Server, Microsoft Access,
PostgreSQL, MySQL, and SQLite
SQL Structured Query Language) : Is programming language for
querying, altering and defining relational databases(RDBMS);
using declarative statements.
Though it is ANSI standard (meaning every DBMS should
support it and support in same way)
some of the syntax or features in SQL are not supported OR
supported in different way by each vendor/company.
Also some companies provide more features on top of SQL.
E.g. Transact-SQL (T-SQL) is Microsoft's and Sybase's
proprietary extension to SQL.
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