SQL

1.SQL 기초 - Database, SQL, MySQL

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2.SQL 기초 - Table

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3.SQL 기초 - SELCT, INSERT, UPDATE, DELETE

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4.SQL 기초 - ORDER BY

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5.SQL 기초 - Operators

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6.SQL 기초 - Union

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7.SQL 기초 - Join

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8.SQL 기초 - CONCAT, ALIAS, DISTINCT, LIMIT

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9.SQL - SQL File

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10.SQL - with Python

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11.SQL - PRIMARY KEY, FOREIGN KEY

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12.SQL - Aggregate Functions (집계함수)

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13.SQL - Scalar Functions

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14.SQL - Subquery

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