Memcached - phpCacheAdmin

PHPMem v2.0.1

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1.6.45

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15 days 9 hours 59 minutes 6 seconds

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487,99MB

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Key

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Encode function

Value

I need to find which columns have missing values and calculate the percentage missing for each. Let me start by querying the column metadata to get null counts across all tables.

```json
{
  "action": "tool_call",
  "reasoning": "The analytics.column_overview metadata table contains null_count for every column. I'll query it to find all columns with null_count > 0, calculate the missing percentage using the row counts from analytics.table_overview, and order by missing percentage to show the most problematic columns first.",
  "tool": "query_sql",
  "args": {
    "sql": "SELECT co.table_name, co.column_name, co.null_count, tov.row_count, ROUND(100.0 * co.null_count / NULLIF(tov.row_count, 0), 2) AS missing_pct FROM analytics.column_overview co JOIN analytics.table_overview tov ON co.table_name = tov.table_name WHERE co.null_count > 0 ORDER BY missing_pct DESC, co.null_count DESC",
    "purpose": "Find all columns with missing values and calculate the percentage missing in each",
    "source": "raw"
  }
}
```