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Greg Dodd
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Merge branch 'main' into dev-2591
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‎Documentation/sp_BlitzCache_Checks_by_Priority.md‎

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|----------|---------------------------------|---------------------------------------|-------------------------------------------------|----------|-------------|
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| 10 | Execution Plans | Forced Serialization | http://www.brentozar.com/blitzcache/forced-serialization/ | 25 | No |
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| 10 | Large USERSTORE_TOKENPERM cache | Using Over 10% of the Buffer Pool | https://brentozar.com/go/userstore | 69 | No |
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| 50 | Complexity | High Compile CPU | https://www.brentozar.com/blitzcache/high-compilers/ | 64 | No |
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| 50 | Complexity | High Compile Memory | https://www.brentozar.com/blitzcache/high-compilers/ | 65 | No |
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| 50 | Execution Plans | Compilation timeout | http://brentozar.com/blitzcache/compilation-timeout/ | 18 | No |
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| 50 | Execution Plans | Compile Memory Limit Exceeded | http://brentozar.com/blitzcache/compile-memory-limit-exceeded/ | 19 | No |
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| 50 | Execution Plans | No join predicate | http://brentozar.com/blitzcache/no-join-predicate/ | 20 | No |
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| 50 | Performance | Long Running Query | http://brentozar.com/blitzcache/long-running-queries/ | 9 | No |
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| 50 | Performance | Missing Indexes | http://brentozar.com/blitzcache/missing-index-request/ | 10 | No |
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| 50 | Selects w/ Writes | Read queries are causing writes | https://dba.stackexchange.com/questions/191825/ | 66 | No |
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| 100 | Complexity | Long Compile Time | https://www.brentozar.com/blitzcache/high-compilers/ | No |
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| 100 | Complexity | Many to Many Merge | Blog not published yet | 61 | Yes |
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| 100 | Complexity | Row Estimate Mismatch | https://www.brentozar.com/blitzcache/bad-estimates/ | 56 | Yes |
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| 100 | Compute Scalar That References A CLR Function | Calls CLR Functions | https://www.brentozar.com/blitzcache/compute-scalar-functions/| 31 | Yes |
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| 200 | Execution Plans | Nearly Parallel | http://brentozar.com/blitzcache/query-cost-near-cost-threshold-parallelism/ | 7 | No |
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| 200 | Execution Plans | Parallel | http://brentozar.com/blitzcache/parallel-plans-detected/ | 6 | No |
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| 200 | Indexes | Backwards Scans | https://www.brentozar.com/blitzcache/backwards-scans/ | 38 | Yes |
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| 200 | Is Paul White Electric? | This query has a Switch operator in it! | https://www.sql.kiwi/2013/06/hello-operator-my-switch-is-bored.html | 998 | Yes |
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| 200 | Is Paul White Electric? | This query has a Switch operator in it! | https://www.sql.kiwi/2013/06/hello-operator-my-switch-is-bored.html | 57 | Yes |
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| 200 | Trace Flags | Session Level Trace Flags Enabled | https://www.brentozar.com/blitz/trace-flags-enabled-globally/ | 29 | No |
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| 254 | Plan Cache Information | Breaks cache down by creation date (24/4/1 hrs) | None | 999 | No |
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| 255 | Global Trace Flags Enabled | You have Global Trace Flags enabled on your server | https://www.brentozar.com/blitz/trace-flags-enabled-globally/ | 1000 | No |

‎Documentation/sp_BlitzFirst_Checks_by_Priority.md‎

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| 1 | SQL Server Internal Maintenance | Log File Shrinking | https://BrentOzar.com/go/logsize | 14 |
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| 10 | Server Performance | Poison Wait Detected | https://BrentOzar.com/go/poison | 30 |
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| 10 | Server Performance | Target Memory Lower Than Max | https://BrentOzar.com/go/target | 35 |
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| 10 | Azure Performance | Database is Maxed Out | https://BrentOzar.com/go/maxedout | 41 |
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| 40 | Table Problems | Forwarded Fetches/Sec High | https://BrentOzar.com/go/fetch | 29 |
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| 50 | In-Memory OLTP | Garbage Collection in Progress | https://BrentOzar.com/go/garbage | 31 |
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| 50 | Query Problems | Compilations/Sec High | https://BrentOzar.com/go/compile | 15 |

‎Documentation/sp_BlitzIndex_Checks_by_Priority.md‎

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# sp_BlitzIndex Checks by Priority
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This table lists all checks ordered by priority.
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Before adding a new check, make sure to add a Github issue for it first, and have a group discussion about its priority, description, and findings URL.
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If you want to change anything about a check - the priority, finding, URL, or ID - open a Github issue first. The relevant scripts have to be updated too.
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CURRENT HIGH CHECKID: 120
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If you want to add a new check, start at 121.
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| Priority | FindingsGroup | Finding | URL | CheckID |
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|----------|---------------------------------|---------------------------------------|-------------------------------------------------|----------|
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| 10 | Index Hoarder | Many NC Indexes on a Single Table | https://www.brentozar.com/go/IndexHoarder | 20 |
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| 10 | Index Hoarder | Unused NC Index with High Writes | https://www.brentozar.com/go/IndexHoarder | 22 |
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| 20 | Multiple Index Personalities | Duplicate Keys | https://www.brentozar.com/go/duplicateindex | 1 |
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| 30 | Multiple Index Personalities | Borderline Duplicate Keys | https://www.brentozar.com/go/duplicateindex | 2 |
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| 40 | Indexaphobia | High Value Missing Index | https://www.brentozar.com/go/indexaphobia | 50 |
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| 70 | Aggressive Indexes | Total Lock Time with Long Average Waits | https://www.brentozar.com/go/aggressiveindexes | 11 |
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| 70 | Aggressive Indexes | Total Lock Time with Short Average Waits | https://www.brentozar.com/go/aggressiveindexes | 12 |
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| 80 | Abnormal Psychology | Columnstore Indexes with Trace Flag 834 | https://support.microsoft.com/en-us/kb/3210239 | 72 |
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| 80 | Abnormal Psychology | Identity Column Near End of Range | https://www.brentozar.com/go/AbnormalPsychology | 68 |
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| 80 | Abnormal Psychology | Filter Columns Not In Index Definition | https://www.brentozar.com/go/IndexFeatures | 34 |
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| 90 | Functioning Statistaholics | Low Sampling Rates | https://www.brentozar.com/go/stats | 91 |
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| 90 | Functioning Statistaholics | Statistics Not Updated Recently | https://www.brentozar.com/go/stats | 90 |
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| 90 | Functioning Statistaholics | Statistics with NO RECOMPUTE | https://www.brentozar.com/go/stats | 92 |
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| 100 | Index Hoarder | NC index with High Writes:Reads | https://www.brentozar.com/go/IndexHoarder | 48 |
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| 100 | Self Loathing Indexes | Heap with a Nonclustered Primary Key | https://www.brentozar.com/go/SelfLoathing | 47 |
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| 100 | Self Loathing Indexes | Heap with Forwarded Fetches | https://www.brentozar.com/go/SelfLoathing | 43 |
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| 100 | Self Loathing Indexes | Large Active Heap | https://www.brentozar.com/go/SelfLoathing | 44 |
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| 100 | Self Loathing Indexes | Low Fill Factor on Clustered Index | https://www.brentozar.com/go/SelfLoathing | 40 |
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| 100 | Self Loathing Indexes | Low Fill Factor on Nonclustered Index | https://www.brentozar.com/go/SelfLoathing | 40 |
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| 100 | Self Loathing Indexes | Medium Active Heap | https://www.brentozar.com/go/SelfLoathing | 45 |
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| 100 | Self Loathing Indexes | Small Active Heap | https://www.brentozar.com/go/SelfLoathing | 46 |
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| 100 | Serial Forcer | Computed Column with Scalar UDF | https://www.brentozar.com/go/serialudf | 99 |
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| 100 | Serial Forcer | Check Constraint with Scalar UDF | https://www.brentozar.com/go/computedscalar | 94 |
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| 150 | Abnormal Psychology | Cascading Updates or Deletes | https://www.brentozar.com/go/AbnormalPsychology | 71 |
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| 150 | Abnormal Psychology | Columnstore Index | https://www.brentozar.com/go/AbnormalPsychology | 61 |
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| 150 | Abnormal Psychology | Column Collation Does Not Match Database Collation| https://www.brentozar.com/go/AbnormalPsychology | 69 |
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| 150 | Abnormal Psychology | Compressed Index | https://www.brentozar.com/go/AbnormalPsychology | 63 |
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| 150 | Abnormal Psychology | In-Memory OLTP | https://www.brentozar.com/go/AbnormalPsychology | 73 |
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| 150 | Abnormal Psychology | Non-Aligned Index on a Partitioned Table | https://www.brentozar.com/go/AbnormalPsychology | 65 |
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| 150 | Abnormal Psychology | Partitioned Index | https://www.brentozar.com/go/AbnormalPsychology | 64 |
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| 150 | Abnormal Psychology | Spatial Index | https://www.brentozar.com/go/AbnormalPsychology | 62 |
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| 150 | Abnormal Psychology | XML Index | https://www.brentozar.com/go/AbnormalPsychology | 60 |
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| 150 | Index Hoarder | Borderline: Wide Indexes (7 or More Columns) | https://www.brentozar.com/go/IndexHoarder | 23 |
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| 150 | Index Hoarder | More Than 5 Percent NC Indexes Are Unused | https://www.brentozar.com/go/IndexHoarder | 21 |
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| 150 | Index Hoarder | Non-Unique Clustered Index | https://www.brentozar.com/go/IndexHoarder | 28 |
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| 150 | Index Hoarder | Unused NC Index with Low Writes | https://www.brentozar.com/go/IndexHoarder | 29 |
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| 150 | Index Hoarder | Wide Clustered Index (>3 columns or >16 bytes) | https://www.brentozar.com/go/IndexHoarder | 24 |
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| 150 | Self Loathing Indexes | Disabled Index | https://www.brentozar.com/go/SelfLoathing | 42 |
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| 150 | Self Loathing Indexes | Hypothetical Index | https://www.brentozar.com/go/SelfLoathing | 41 |
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| 200 | Abnormal Psychology | Identity Column Using a Negative Seed or Increment Other Than 1 | https://www.brentozar.com/go/AbnormalPsychology | 74 |
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| 200 | Abnormal Psychology | Recently Created Tables/Indexes (1 week) | https://www.brentozar.com/go/AbnormalPsychology | 66 |
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| 200 | Abnormal Psychology | Recently Modified Tables/Indexes (2 days) | https://www.brentozar.com/go/AbnormalPsychology | 67 |
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| 200 | Abnormal Psychology | Replicated Columns | https://www.brentozar.com/go/AbnormalPsychology | 70 |
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| 200 | Abnormal Psychology | Temporal Tables | https://www.brentozar.com/go/AbnormalPsychology | 110 |
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| 200 | Cold Calculators | Definition Defeatists | https://www.brentozar.com/go/serialudf | 100 |
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| 200 | Functioning Statistaholics | Filter Fixation | https://www.brentozar.com/go/stats | 93 |
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| 200 | Index Hoarder | Addicted to Nulls | https://www.brentozar.com/go/IndexHoarder | 25 |
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| 200 | Index Hoarder | Addicted to Strings | https://www.brentozar.com/go/IndexHoarder | 27 |
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| 200 | Index Hoarder | Wide Tables: 35+ cols or > 2000 non-LOB bytes | https://www.brentozar.com/go/IndexHoarder | 26 |
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| 200 | Self Loathing Indexes | Heaps with Deletes | https://www.brentozar.com/go/SelfLoathing | 49 |
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| 200 | Workaholics | Scan-a-lots (index-usage-stats) | https://www.brentozar.com/go/Workaholics | 80 |
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| 200 | Workaholics | Top Recent Accesses (index-op-stats) | https://www.brentozar.com/go/Workaholics | 81 |
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| 250 | Feature-Phobic Indexes | Few Indexes Use Includes | https://www.brentozar.com/go/IndexFeatures | 31 |
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| 250 | Feature-Phobic Indexes | No Filtered Indexes or Indexed Views | https://www.brentozar.com/go/IndexFeatures | 32 |
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| 250 | Feature-Phobic Indexes | No Indexes Use Includes | https://www.brentozar.com/go/IndexFeatures | 30 |
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| 250 | Feature-Phobic Indexes | Potential Filtered Index (Based on Column Name) | https://www.brentozar.com/go/IndexFeatures | 33 |

‎Documentation/sp_Blitz_Checks_by_Priority.md‎

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If you want to change anything about a check - the priority, finding, URL, or ID - open a Github issue first. The relevant scripts have to be updated too.
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CURRENT HIGH CHECKID: 255.
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If you want to add a new one, start at 256.
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CURRENT HIGH CHECKID: 256.
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If you want to add a new one, start at 257.
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| Priority | FindingsGroup | Finding | URL | CheckID |
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|----------|-----------------------------|---------------------------------------------------------|------------------------------------------------------------------------|----------|
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| 0 | Outdated sp_Blitz | sp_Blitz is Over 6 Months Old | https://www.BrentOzar.com/blitz/ | 155 |
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| 0 | Informational | @CheckUserDatabaseObjects Disabled | https://www.BrentOzar.com/blitz/ | 201 |
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| 0 | Informational | @CheckUserDatabaseObjects Disabled | https://www.BrentOzar.com/blitz/ | 204 |
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| 0 | Informational | Some Checks Skipped | https://www.BrentOzar.com/blitz/ | 223 |
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| 1 | Backup | Backing Up to Same Drive Where Databases Reside | https://www.BrentOzar.com/go/backup | 93 |
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| 1 | Backup | Backups Not Performed Recently | https://www.BrentOzar.com/go/nobak | 1 |
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| 1 | Backup | Encryption Certificate Not Backed Up Recently | https://www.BrentOzar.com/go/tde | 202 |
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| 1 | Backup | Full Recovery Mode w/o Log Backups | https://www.BrentOzar.com/go/biglogs | 2 |
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| 1 | Backup | Log Backups to NUL | https://www.BrentOzar.com/go/nul | 256 |
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| 1 | Backup | TDE Certificate Not Backed Up Recently | https://www.BrentOzar.com/go/tde | 119 |
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| 1 | Corruption | Database Corruption Detected | https://www.BrentOzar.com/go/repair | 34 |
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| 1 | Corruption | Database Corruption Detected | https://www.BrentOzar.com/go/repair | 89 |
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| 10 | Performance | DBCC DROPCLEANBUFFERS Ran Recently | https://www.BrentOzar.com/go/dbcc | 207 |
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| 10 | Performance | DBCC FREEPROCCACHE Ran Recently | https://www.BrentOzar.com/go/dbcc | 208 |
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| 10 | Performance | DBCC SHRINK% Ran Recently | https://www.BrentOzar.com/go/dbcc | 210 |
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| 10 | Performance | DBCC WRITEPAGE Used Recently | https://www.BrentOzar.com/go/dbcc | 209 |
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| 10 | Performance | High Memory Use for In-Memory OLTP (Hekaton) | https://www.BrentOzar.com/go/hekaton | 145 |
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| 10 | Performance | Memory Nodes Offline | https://www.BrentOzar.com/go/schedulers | 110 |
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| 10 | Performance | Plan Cache Erased Recently | https://www.BrentOzar.com/askbrent/plan-cache-erased-recently/ | 125 |
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| 10 | Reliability | DBCC WRITEPAGE Used Recently | https://www.BrentOzar.com/go/dbcc | 209 |
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| 10 | Reliability | Server restarted in last 24 hours | | 221 |
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| 20 | Reliability | Dangerous Build of SQL Server (Corruption) | http://sqlperformance.com/2014/06/sql-indexes/hotfix-sql-2012-rebuilds | 129 |
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| 20 | Reliability | Dangerous Build of SQL Server (Security) | https://technet.microsoft.com/en-us/library/security/MS14-044 | 157 |
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| 50 | Performance | Snapshotting Too Many Databases | https://www.BrentOzar.com/go/toomanysnaps | 236 |
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| 50 | Performance | Too Much Free Memory | https://www.BrentOzar.com/go/freememory | 165 |
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| 50 | Performance | Wait Stats Cleared Recently| | 205 |
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| 50 | Reliability | DBCC WRITEPAGE Used Recently | https://www.BrentOzar.com/go/dbcc | 209 |
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| 50 | Reliability | Full Text Indexes Not Updating | https://www.BrentOzar.com/go/fulltext | 113 |
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| 50 | Reliability | Page Verification Not Optimal | https://www.BrentOzar.com/go/torn | 14 |
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| 50 | Reliability | Possibly Broken Log Shipping | https://www.BrentOzar.com/go/shipping | 111 |
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| 170 | Reliability | Errors Logged Recently in the Default Trace | https://www.BrentOzar.com/go/defaulttrace | 150 |
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| 170 | Reliability | Max File Size Set | https://www.BrentOzar.com/go/maxsize | 80 |
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| 170 | Reliability | Remote Admin Connections Disabled | https://www.BrentOzar.com/go/dac | 100 |
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| 200 | Backup | Backing Up Unneeded Database | https://www.BrentOzar.com/go/reportservertempdb | 127 |
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| 200 | Backup | MSDB Backup History Not Purged | https://www.BrentOzar.com/go/history | 3 |
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| 200 | Backup | MSDB Backup History Purged Too Frequently | https://www.BrentOzar.com/go/history | 186 |
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| 200 | Informational | @@Servername not set | https://www.BrentOzar.com/go/servername | 70 |
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| 200 | Informational | Agent Jobs Starting Simultaneously | https://www.BrentOzar.com/go/busyagent | 123 |
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| 200 | Informational | Backup Compression Default Off | https://www.BrentOzar.com/go/backup | 116 |
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| 200 | Informational | Cluster Node | https://www.BrentOzar.com/go/node | 53 |
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| 200 | Informational | Collation different than tempdb | https://www.BrentOzar.com/go/collate | 76 |
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| 200 | Informational | Database Collation Mismatch | https://www.BrentOzar.com/go/collate | 58 |
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| 200 | Informational | Database Encrypted | https://www.BrentOzar.com/go/tde | 21 |
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| 200 | Informational | Date Correlation On | https://www.BrentOzar.com/go/corr | 20 |
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| 200 | Informational | Linked Server Configured | https://www.BrentOzar.com/go/link | 49 |
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| 210 | Non-Default Database Config | Delayed Durability Enabled | https://www.BrentOzar.com/go/dbdefaults | 143 |
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| 210 | Non-Default Database Config | Forced Parameterization Enabled | https://www.BrentOzar.com/go/dbdefaults | 138 |
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| 210 | Non-Default Database Config | Memory Optimized Enabled | https://www.BrentOzar.com/go/dbdefaults | 144 |
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| 210 | Non-Default Database Config | Query Store Enabled | https://www.BrentOzar.com/go/dbdefaults | 139 |
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| 210 | Non-Default Database Config | Read Committed Snapshot Isolation Enabled | https://www.BrentOzar.com/go/dbdefaults | 133 |
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| 210 | Non-Default Database Config | Recursive Triggers Enabled | https://www.BrentOzar.com/go/dbdefaults | 136 |
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| 210 | Non-Default Database Config | Snapshot Isolation Enabled | https://www.BrentOzar.com/go/dbdefaults | 132 |

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