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2025-02-24 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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INNER JOIN associates two data tables:
SELECT * FROM Table 1 INNER JOIN Table 2 ON Table 1. Field number = Table 2. Field number
How to write the three data tables associated with INNER JOIN:
SELECT * FROM (Table 1, INNER JOIN, Table 2, ON, Table 1. Field number = Table 2. Field number) INNER JOIN Table 3 ON Table 1. Field number = Table 3. Field number
How to write the four data tables associated with INNER JOIN:
SELECT * FROM (Table 1 INNER JOIN Table 2 ON Table 1. Field number = Table 2. Field number) INNER JOIN Table 3 ON Table 1. Field number = Table 3. Field number) INNER JOIN Table 4 ON Member. Field number = Table 4. Field number
How to write the five data tables associated with INNER JOIN:
SELECT * FROM ((table 1 INNER JOIN Table 2 ON Table 1. Field number = Table 2. Field number) INNER JOIN Table 3 ON Table 1. Field number = Table 3. Field number) INNER JOIN Table 4 ON Member. Field number = Table 4. Field number) INNER JOIN Table 5 ON Member. Field number = Table 5. Field number
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