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SQL

INSERT Query

SELECT-clause INSERT-statement

SQL

SQL UNIQUE Constraint

unique-key primary-key constraints

SQL

COALESCE

General-Functions COALESCE IF-ELSEIF-ENDIF

SQL

The SQL UPDATE Statement

SQL

The DROP TABLE Statement

DROP-statement DROP-TABLE

SQL

SQL Injection

SQL

COUNT() Function

COUNT-Function aggregate-functions NULL-values

SQL

Phantom reads Example

isolation phantom-read transactions SERIALIZABLE REPEATABLE-READ

SQL

Example - INNER JOINS

join inner-join

SQL

INNER JOIN example

join cross-join inner-join

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