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What is SQL? SQL is Structured Query Language - used to store, manipulate and retrieve data from. RDBMS. (It is not a database, it is a language used to interact with database) We use SQL for CRUD Operations : CREATE. READ. UPDATE. DELETE. To create databases, tables, insert tuples in tables etc. To read data present in the database.
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SQL Notes by Apna College (1) - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
SQL Notes by Apna College (1) - Free download as PDF File (.pdf), Text File (.txt) or read online for free. SQL is a language used to interact with relational database management systems (RDBMS) like MySQL.
SQL Notes by Apna College (1) [1] - Free download as PDF File (.pdf), Text File (.txt) or view presentation slides online.
Syntax Query Sub Query SELECT column(s) FROM table_name WHERE col_name operator ( subquery ); APNA COLLEGE SQL Sub Queries Example Get names of all students who scored more than class average. Step 1.
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