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SQL

SQL. Data Modification Statements. SQL: Modifications. Inserting new data (2 methods). Insert Into Table Values( A 1 , A 2 ,…, A n ). Insert Into Table Select-Statement. SQL: Modifications. Deleting existing data. Delete From Table Where Condition. SQL: Modifications.

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SQL

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  1. SQL Data Modification Statements

  2. SQL: Modifications Inserting new data (2 methods) Insert Into Table Values(A1,A2,…,An) Insert Into Table Select-Statement

  3. SQL: Modifications Deleting existing data Delete From Table Where Condition

  4. SQL: Modifications Updating existing data UpdateTable • Set Attr= Expression • Where Condition

  5. SQL: Modifications Updating existing data UpdateTable • Set A1=Expr1,A2=Expr2,…,An=Exprn • Where Condition Demo: simple college admissions database College(cName,state,enrollment) Student(sID,sName,GPA,sizeHS) Apply(sID,cName,major,decision)

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