SQL

1.[SQL] DATABASE

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2.[SQL] USER

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3.[SQL] TABLE

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4.[SQL] INSERT, UPDATE, DELETE

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5.[SQL] SELECT, WHERE

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6.[SQL] ORDER BY

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7.[SQL] COMPARISON OPERATOR

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8.[SQL] LOGICAL OPERATOR

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9.[SQL] UNION

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10.[SQL] JOIN

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11.[SQL] CONCAT

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12.[SQL] ALIAS

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13.[SQL] DISTINCT

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14.[SQL] LIMIT

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15.[SQL] PRIMARY KEY

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16.[SQL] FOREIGN KEY

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17.[SQL] AGGREGATE FUNCTION

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18.[SQL] GROUP BY

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19.[SQL] HAVING

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20.[SQL] SCALAR FUNCTION

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21.[SQL] SUBQUERY

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