initial commit
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Thierry Schork
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Microsoft Visual Studio Solution File, Format Version 12.00
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# SQL Server Management Studio Solution File, Format Version 18.00
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VisualStudioVersion = 15.0.28307.421
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{4F2E2C19-372F-40D8-9FA7-9D2138C6997A}") = "OCTPDBA-373 - alert and monitoring structure", "OCTPDBA-373 - alert and monitoring structure.ssmssqlproj", "{7177190D-8629-4E51-BBE7-D81C2F9F6331}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Default|Default = Default|Default
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{7177190D-8629-4E51-BBE7-D81C2F9F6331}.Default|Default.ActiveCfg = Default
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{218719E2-5FDB-4331-8CBF-3508BA7C3A18}.Default|Default.ActiveCfg = Default
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {344BCD75-0967-4714-8248-D9C6D00E8B77}
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EndGlobalSection
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EndGlobal
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@@ -0,0 +1,34 @@
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<?xml version="1.0"?>
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<SqlWorkbenchSqlProject xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" Name="OCTPDBA-373 - alert and monitoring structure">
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<Items>
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<LogicalFolder Name="Connections" Type="2" Sorted="true">
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<Items>
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<ConnectionNode Name="(local):CENTRALINFRA\ua208700">
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<Created>2022-10-28T08:34:19.0911022+02:00</Created>
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<Type>SQL</Type>
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<Server>(local)</Server>
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<UserName />
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<Authentication>Windows Authentication</Authentication>
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<InitialDB>sandbox</InitialDB>
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<LoginTimeout>30</LoginTimeout>
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<ExecutionTimeout>0</ExecutionTimeout>
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<ConnectionProtocol>NotSpecified</ConnectionProtocol>
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<ApplicationName>Microsoft SQL Server Management Studio - Query</ApplicationName>
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</ConnectionNode>
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</Items>
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</LogicalFolder>
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<LogicalFolder Name="Queries" Type="0" Sorted="true">
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<Items>
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<FileNode Name="structure proposal.sql">
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<AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:(local):True</AssociatedConnectionMoniker>
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<AssociatedConnSrvName>(local)</AssociatedConnSrvName>
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<AssociatedConnUserName />
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<FullPath>structure proposal.sql</FullPath>
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</FileNode>
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</Items>
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</LogicalFolder>
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<LogicalFolder Name="Miscellaneous" Type="3" Sorted="true">
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<Items />
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</LogicalFolder>
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</Items>
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</SqlWorkbenchSqlProject>
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@@ -0,0 +1,106 @@
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/*
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OCTPDBA-373
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Proposition of structure for alerts in dbaTools, for reporting via Scom
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27.10.2022, TSC
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*/
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USE sandbox
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IF OBJECT_ID('dbo.alert_type') IS NOT NULL BEGIN;
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IF OBJECT_ID('fk_alert_log__ref__alert_type') IS NOT NULL BEGIN
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ALTER TABLE dbo.alert_log DROP CONSTRAINT fk_alert_log__ref__alert_type;
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END
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IF OBJECT_ID('fk_alert_overview__ref__alert_type') IS NOT NULL BEGIN
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ALTER TABLE dbo.alert_overview DROP CONSTRAINT fk_alert_overview__ref__alert_type;
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END
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DROP TABLE dbo.alert_type;
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END;
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/*
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Define the types of alerts we handle.
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Each alert type is identified by an unique code
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We can define a window of time in between alerts will not be recorded, or have a master switch to enable / disable the alert
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If an alert is enabled (alert_enabled = 1) but we are in a disabled time window (current_timestamp between alert_disabled_from and alert_disabled_to) then we do not record any new alerts
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the field keep_for_days define how long we keep a record of this alert in the log, once an alert is older that this value, it will be cleaned up.
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The severity of the alert is at the alert level and not tied to the definition of the alert itself.
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*/
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CREATE TABLE dbo.alert_type (
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alert_type_id INT NOT NULL IDENTITY
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,alert_type VARCHAR(50) NOT NULL --a code to identify the alert
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,alert_enabled BIT NOT NULL --global switch to disable / enable the alert outside a time window
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CONSTRAINT def_alert_enabled
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DEFAULT 1
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,alert_disabled_from SMALLDATETIME NULL --if a window is planned for deativating the alert, beginning of the window
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,alert_disabled_to SMALLDATETIME NULL --if a window is planned for deativating the alert, end of the window
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,keep_for_days INT NOT NULL --how long does the alert should stay in the log. After that age passes, alerts in the log will be deleted.
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DEFAULT 365
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,comp_alert_is_enabled AS CONVERT(BIT --computed column to get the current state of the alert (enabled or disabled)
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,alert_enabled * CASE
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WHEN CURRENT_TIMESTAMP BETWEEN alert_disabled_from
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AND alert_disabled_to THEN 0
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ELSE 1
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END
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)
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,CONSTRAINT pk_alert_type
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PRIMARY KEY (alert_type_id)
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);
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CREATE UNIQUE NONCLUSTERED INDEX NCUIX_alert_type__alert_type
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ON dbo.alert_type (alert_type);
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IF OBJECT_ID('dbo.alert_log') IS NOT NULL BEGIN;
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DROP TABLE dbo.alert_log;
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END;
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/*
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This table will holds every alerts that have been recorded.
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*/
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CREATE TABLE dbo.alert_log (
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alert_log_id INT NOT NULL IDENTITY
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,alert_type VARCHAR(50) NOT NULL --point to alert_type, FK
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,alert_creation_date SMALLDATETIME NOT NULL --when was this alert created
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CONSTRAINT def_alert_creation_date
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DEFAULT CURRENT_TIMESTAMP
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,alert_treated_date SMALLDATETIME NULL --when was the alert treated, if it was
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,alert_source VARCHAR(1000) NULL --what is the source of the alert (job name, script, parsing system logs, audits, extended events ?)
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,alert_resolution_comment VARCHAR(MAX) NULL --to leave a comment on the resolution, if needed
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,alert_severity INT NULL -- 0 = info / 1 = warning / 2 = error
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,CONSTRAINT pk_alert_log
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PRIMARY KEY (alert_log_id)
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);
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IF OBJECT_ID('fk_alert_log__ref__alert_type') IS NULL
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ALTER TABLE dbo.alert_log
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ADD CONSTRAINT fk_alert_log__ref__alert_type
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FOREIGN KEY (alert_type)
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REFERENCES dbo.alert_type (alert_type)
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;
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IF OBJECT_ID('dbo.alert_overview')IS NOT NULL BEGIN;
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DROP TABLE dbo.alert_overview;
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END;
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/*
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This overview table is recreated by a job every night.
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It only contains 1 row per alert type, if the alert is enabled in alert_type.
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A timestamp of the rebuild of this table is present, to ensure that the job did rebuild it daily.
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The highest severity of all the alerts of that type is recorded, as well as the oldest non treated alert
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A computed column gives the age of the oldest alert of that type in days
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*/
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CREATE TABLE dbo.alert_overview(
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alert_type VARCHAR(50) NOT NULL --1 entry per alert type, this is an overview
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,overview_creation_date SMALLDATETIME NOT NULL --when was this overview created
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,alert_oldest SMALLDATETIME NOT NULL --The oldest alert entry not treated for this alert type
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,alert_severity INT NOT NULL --the highest level of alert severity not treated for this alert type
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,comp_days_since_alert_exists AS DATEDIFF(DAY, alert_oldest, CURRENT_TIMESTAMP) --Oldest not treated alert of that type is X days old
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,CONSTRAINT pk_alert_overview PRIMARY KEY(alert_type)
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);
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IF OBJECT_ID('fk_alert_overview__ref__alert_type') IS NULL
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ALTER TABLE dbo.alert_overview
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ADD CONSTRAINT fk_alert_overview__ref__alert_type
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FOREIGN KEY(alert_type)
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REFERENCES dbo.alert_type(alert_type)
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;
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