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<p><strong>Troubleshooting Multiple INNER JOIN Syntax Errors in Microsoft Access SQL</strong></p>
<p>Microsoft Access users often encounter "Syntax Error (missing operator) in query expression" when using multiple <code>INNER JOIN</code> clauses. This usually stems from improperly structured join conditions.</p>
<p>Consider this flawed query:</p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false"><code class="language-sql">SELECT ...
FROM tbl_employee
INNER JOIN tbl_netpay ON tbl_employee.emp_id = tbl_netpay.emp_id
INNER JOIN tbl_gross ON tbl_employee.emp_id = tbl_gross.emp_ID
INNER JOIN tbl_tax ON tbl_employee.emp_id - tbl_tax.emp_ID;</code></pre><div class="contentsignin">Copy after login</div></div>
<p>The error arises from the missing operator (<code>=</code>, <code>></code>, <code><</code>, etc.) in the final <code>INNER JOIN</code> between <code>tbl_employee</code> and <code>tbl_tax</code>.</p>
<p>The solution involves using parentheses to clarify the join order within the <code>FROM</code> clause:</p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false"><code class="language-sql">SELECT ...
FROM
((tbl_employee
INNER JOIN tbl_netpay
ON tbl_employee.emp_id = tbl_netpay.emp_id)
INNER JOIN tbl_gross
ON tbl_employee.emp_id = tbl_gross.emp_ID)
INNER JOIN tbl_tax
ON tbl_employee.emp_id = tbl_tax.emp_ID;</code></pre><div class="contentsignin">Copy after login</div></div>
<p>By grouping the joins with parentheses, the query parser correctly interprets the join sequence and applies the appropriate operators.</p>
<p><strong>Best Practices:</strong></p>
<p>Always use parentheses in <code>FROM</code> clauses with multiple joins to avoid ambiguity and potential syntax errors. The Access query designer provides a visual interface that automatically handles parentheses and operator placement, offering a less error-prone method for creating complex joins.</p>
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