Your question is Remove Redundant Parentheses. Start with the requirements and the two tables on the right.
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Explain how you would remove redundant parentheses from an expression.
The expressions are stored as text. For this task, parentheses are redundant only when they directly enclose a single identifier or integer operand. Preserve parentheses around compound expressions and exclude inactive or null expressions.
expression_group, expression_id, and cleaned_expressionexpression_group ascending, then expression_id ascending| Column | Type | Description |
|---|---|---|
| group_idPK | INT | Unique group identifier |
| expression_group | VARCHAR(50) | Display name for the expression group |
| Column | Type | Description |
|---|---|---|
| expression_idPK | INT | Unique expression identifier |
| group_id | INT | Associated expression group |
| expression_text | TEXT | Expression stored as text |
| is_active | BOOLEAN | Whether the expression should be processed |