{ "api_version": "1", "kind": "dse_post", "self": "https://update.dsesecurity.com/api/v1/posts/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/", "item": { "id": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/", "slug": "dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window", "url": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/", "alternate_urls": { "markdown": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window.md", "json": "https://update.dsesecurity.com/api/v1/posts/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/" }, "title": "Inspect empty time buckets before interpreting an Azure Workbook chart window", "summary": "A query can omit intervals that contain no records.", "format": { "slug": "guide", "name": "Guide" }, "priority": { "slug": "info", "name": "Information" }, "featured": false, "image": { "theme": "cyber-defense", "label": "Cyber defense", "alt": "Layered glass and metal cyber-defense structure with controlled blue and gold signal paths.", "card_url": "https://update.dsesecurity.com/assets/editorial/cyber-defense-card.webp?v=1.8.20", "hero_url": "https://update.dsesecurity.com/assets/editorial/cyber-defense-hero.webp?v=1.8.20", "social_url": "https://update.dsesecurity.com/assets/editorial/cyber-defense-social-v2.jpg?v=1.8.20", "width": 2400, "height": 1350 }, "topics": [ { "slug": "cybersecurity", "name": "Cybersecurity", "url": "https://update.dsesecurity.com/topic/cybersecurity/" }, { "slug": "it", "name": "IT", "url": "https://update.dsesecurity.com/topic/it/" } ], "author": { "name": "DSE Security Editorial Team", "url": "https://update.dsesecurity.com/#editorial-team", "type": "Organization" }, "publisher": { "name": "Detection Systems & Engineering", "url": "https://dsesecurity.com/" }, "published_at": "2026-09-17T16:32:49+00:00", "modified_at": "2026-09-17T16:42:36+00:00", "reviewed_on": "2026-09-17", "reading_minutes": 1, "word_count": 216, "potentially_affected": "Use this review for a time chart driven by a log query using summarize. Identify the selected interval, bin size and expected empty periods. Do not treat an omitted row as a measured zero, or assume the chart's visible edges prove the query's requested time range.", "dse_recommendation": "DSE recommends inspecting the underlying query results before altering the incident narrative.", "primary_source": { "name": "Azure Monitor workbook chart visualizations - Azure Monitor | Microsoft Learn", "url": "https://learn.microsoft.com/en-us/azure/azure-monitor/visualize/workbooks-chart-visualizations", "published_on": null, "authority": "Microsoft Learn" }, "publishing_principles": "https://update.dsesecurity.com/updates/dse-updates-editorial-methodology/", "usage_info": "https://update.dsesecurity.com/usage/", "copyright_notice": "Copyright © 2026 Detection Systems & Engineering. All rights reserved.", "content_html": "

Source facts

\n

Microsoft notes that summarize omits a result row when a time bucket has no items. Depending on where those empty buckets fall within the selected range, the workbook chart’s displayed time window can shift. Its chart guidance contrasts this behavior with make-series. Microsoft Learn.

\n

Applicability

\n

Use this review for a time chart driven by a log query using summarize. Identify the selected interval, bin size and expected empty periods. Do not treat an omitted row as a measured zero, or assume the chart’s visible edges prove the query’s requested time range.

\n

DSE recommendation

\n

DSE recommends inspecting the underlying query results before altering the incident narrative. Decide how the report should represent empty intervals and compare the source’s alternatives with that reporting requirement. Label any explicit zero-filling choice so readers can distinguish it from a recorded measurement. Test the revised chart with a known sparse dataset.

\n

Verification

\n

Use an approved dataset containing empty buckets at the beginning, middle and end of the requested range. Compare result rows and chart boundaries before and after the proposed query change. Confirm that the displayed period and empty-data treatment match the documented intent. Preserve the query and sparse-data examples so later visualization edits can be checked against the same expectation.

\n

Official references

\n

Microsoft Learn: Azure Monitor workbook chart visualizations.

", "content_text": "Source facts\nMicrosoft notes that summarize omits a result row when a time bucket has no items. Depending on where those empty buckets fall within the selected range, the workbook chart’s displayed time window can shift. Its chart guidance contrasts this behavior with make-series. Microsoft Learn.\nApplicability\nUse this review for a time chart driven by a log query using summarize. Identify the selected interval, bin size and expected empty periods. Do not treat an omitted row as a measured zero, or assume the chart’s visible edges prove the query’s requested time range.\nDSE recommendation\nDSE recommends inspecting the underlying query results before altering the incident narrative. Decide how the report should represent empty intervals and compare the source’s alternatives with that reporting requirement. Label any explicit zero-filling choice so readers can distinguish it from a recorded measurement. Test the revised chart with a known sparse dataset.\nVerification\nUse an approved dataset containing empty buckets at the beginning, middle and end of the requested range. Compare result rows and chart boundaries before and after the proposed query change. Confirm that the displayed period and empty-data treatment match the documented intent. Preserve the query and sparse-data examples so later visualization edits can be checked against the same expectation.\nOfficial references\nMicrosoft Learn: Azure Monitor workbook chart visualizations.", "content_markdown": "## Source facts\n\nMicrosoft notes that summarize omits a result row when a time bucket has no items. Depending on where those empty buckets fall within the selected range, the workbook chart’s displayed time window can shift. Its chart guidance contrasts this behavior with make-series. [Microsoft Learn](https://learn.microsoft.com/en-us/azure/azure-monitor/visualize/workbooks-chart-visualizations).\n\n## Applicability\n\nUse this review for a time chart driven by a log query using summarize. Identify the selected interval, bin size and expected empty periods. Do not treat an omitted row as a measured zero, or assume the chart’s visible edges prove the query’s requested time range.\n\n## DSE recommendation\n\nDSE recommends inspecting the underlying query results before altering the incident narrative. Decide how the report should represent empty intervals and compare the source’s alternatives with that reporting requirement. Label any explicit zero-filling choice so readers can distinguish it from a recorded measurement. Test the revised chart with a known sparse dataset.\n\n## Verification\n\nUse an approved dataset containing empty buckets at the beginning, middle and end of the requested range. Compare result rows and chart boundaries before and after the proposed query change. Confirm that the displayed period and empty-data treatment match the documented intent. Preserve the query and sparse-data examples so later visualization edits can be checked against the same expectation.\n\n## Official references\n\n[Microsoft Learn: Azure Monitor workbook chart visualizations](https://learn.microsoft.com/en-us/azure/azure-monitor/visualize/workbooks-chart-visualizations)." }, "json_ld": { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://dsesecurity.com/#organization", "name": "Detection Systems & Engineering", "alternateName": "DSE Security", "url": "https://dsesecurity.com/", "logo": { "@type": "ImageObject", "url": "https://update.dsesecurity.com/assets/dse-logo-20260812.png?v=1.8.20" } }, { "@type": "Organization", "@id": "https://update.dsesecurity.com/#editorial-team", "name": "DSE Security Editorial Team", "url": "https://update.dsesecurity.com/", "parentOrganization": { "@id": "https://dsesecurity.com/#organization" } }, { "@type": "WebSite", "@id": "https://update.dsesecurity.com/#website", "name": "DSE Updates", "alternateName": "DSE Security Knowledge Hub", "url": "https://update.dsesecurity.com/", "inLanguage": "en-US", "publisher": { "@id": "https://dsesecurity.com/#organization" }, "potentialAction": { "@type": "SearchAction", "target": { "@type": "EntryPoint", "urlTemplate": "https://update.dsesecurity.com/?q={search_term_string}" }, "query-input": "required name=search_term_string" } }, { "@type": "WebPage", "@id": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/", "url": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/", "isPartOf": { "@id": "https://update.dsesecurity.com/#website" }, "lastReviewed": "2026-09-17" }, { "@type": "BreadcrumbList", "@id": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/#breadcrumbs", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "DSE Updates", "item": "https://update.dsesecurity.com/" }, { "@type": "ListItem", "position": 2, "name": "Inspect empty time buckets before interpreting an Azure Workbook chart window", "item": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/" } ] }, { "@type": [ "Article", "TechArticle" ], "@id": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/#article", "identifier": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/", "url": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/", "headline": "Inspect empty time buckets before interpreting an Azure Workbook chart window", "description": "A query can omit intervals that contain no records.", "abstract": "A query can omit intervals that contain no records.", "articleBody": "Source facts\nMicrosoft notes that summarize omits a result row when a time bucket has no items. Depending on where those empty buckets fall within the selected range, the workbook chart’s displayed time window can shift. Its chart guidance contrasts this behavior with make-series. Microsoft Learn.\nApplicability\nUse this review for a time chart driven by a log query using summarize. Identify the selected interval, bin size and expected empty periods. Do not treat an omitted row as a measured zero, or assume the chart’s visible edges prove the query’s requested time range.\nDSE recommendation\nDSE recommends inspecting the underlying query results before altering the incident narrative. Decide how the report should represent empty intervals and compare the source’s alternatives with that reporting requirement. Label any explicit zero-filling choice so readers can distinguish it from a recorded measurement. Test the revised chart with a known sparse dataset.\nVerification\nUse an approved dataset containing empty buckets at the beginning, middle and end of the requested range. Compare result rows and chart boundaries before and after the proposed query change. Confirm that the displayed period and empty-data treatment match the documented intent. Preserve the query and sparse-data examples so later visualization edits can be checked against the same expectation.\nOfficial references\nMicrosoft Learn: Azure Monitor workbook chart visualizations.", "datePublished": "2026-09-17T16:32:49+00:00", "dateModified": "2026-09-17T16:42:36+00:00", "mainEntityOfPage": { "@id": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/" }, "inLanguage": "en-US", "isAccessibleForFree": true, "author": { "@type": "Organization", "name": "DSE Security Editorial Team", "url": "https://update.dsesecurity.com/#editorial-team" }, "publisher": { "@id": "https://dsesecurity.com/#organization" }, "image": { "@type": "ImageObject", "@id": "https://update.dsesecurity.com/updates/dse-20260917-131-inspect-empty-time-buckets-before-interpreting-an-azure-workbook-chart-window/#primaryimage", "url": "https://update.dsesecurity.com/assets/editorial/cyber-defense-social-v2.jpg?v=1.8.20", "contentUrl": "https://update.dsesecurity.com/assets/editorial/cyber-defense-social-v2.jpg?v=1.8.20", "width": 1200, "height": 630, "caption": "Inspect empty time buckets before interpreting an Azure Workbook chart window" }, "articleSection": [ "Cybersecurity", "IT" ], "keywords": [ "Cybersecurity", "IT", "Guide", "Information priority" ], "genre": "Guide", "about": [ { "@type": "Thing", "name": "Cybersecurity", "url": "https://update.dsesecurity.com/topic/cybersecurity/" }, { "@type": "Thing", "name": "IT", "url": "https://update.dsesecurity.com/topic/it/" } ], "wordCount": 216, "timeRequired": "PT1M", "publishingPrinciples": "https://update.dsesecurity.com/updates/dse-updates-editorial-methodology/", "usageInfo": "https://update.dsesecurity.com/usage/", "copyrightHolder": { "@id": "https://dsesecurity.com/#organization" }, "copyrightNotice": "Copyright © 2026 Detection Systems & Engineering. All rights reserved.", "citation": { "@type": "CreativeWork", "name": "Azure Monitor workbook chart visualizations - Azure Monitor | Microsoft Learn", "url": "https://learn.microsoft.com/en-us/azure/azure-monitor/visualize/workbooks-chart-visualizations" } } ] } }