Query Optimizer
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This page explains how Cost Estimator is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A computational component within Query Optimizer that predicts execution costs of query plans.
Technical details and manufacturing context for Cost Estimator
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Operating Temperature | -40–85 °C | Outside range, seals may failIEC 60721-3-1 |
| Measurement Accuracy | ±0.5 % | Higher accuracy reduces uncertaintyISO 5725-1 |
| Response Time | ≤50 ms | Critical for dynamic controlIEC 60068-2-6 |
| Supply Voltage | 24 ±10% V DC | Use regulated power supplyIEC 61131-2 |
| Power Consumption | 5–15 W | Affects heat dissipationIEC 60034-1 |
| Ingress Protection | IP54–IP65 | IP65 for dusty/wet environmentsIEC 60529 |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
| pressure: | N/A (software component) |
| other spec: | Query complexity: Up to 1000 operations per plan, Database size: Up to 100TB, Concurrency: Up to 100 simultaneous queries |
| temperature: | 0-70°C (operational environment) |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
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2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
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The Cost Estimator is a software component within the Query Optimizer of a database management system. It predicts the execution cost of different query plans based on database statistics and system parameters.
It receives candidate query plans, applies cost models using statistics like cardinality and selectivity, and computes estimated costs for operations such as scans, joins, and sorts. The optimizer then selects the plan with the lowest estimated cost.
The directory lists typical parameters such as Rated Flow Capacity (10–100 m³/h), Operating Pressure (1.0–1.6 MPa), Operating Temperature (-40–85 °C), and others. These are reference ranges and must be confirmed for the actual model.
No, it is a computational component implemented as software algorithms. It is not a physical part with dimensions or material properties, but the listed parameters serve as procurement references.
This component is essential for the following industrial systems and equipment:
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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