SYSADMIN schema

System schema for administrative information and actions.

SYSADMIN.Usage

The following table supplies information about how views and procedures are defined.

Column name Type Description

VDBName

string

VDB name

UID

string

Object UID

object_type

string

Type of object (StoredProcedure, ForeignProcedure, Table, View, Column, etc.)

Name

string

Object Name or parent name

ElementName

string

Name of column or parameter, may be null to indicate a table/procedure. Parameter level dependencies are currently not implemented.

Uses_UID

string

Used object UID

Uses_object_type

string

Used object type

Uses_SchemaName

string

Used object schema

Uses_Name

string

Used object name or parent name

Uses_ElementName

string

Used column or parameter name, may be null to indicate a table/procedure level dependency

Every column, parameter, table, or procedure referenced in a procedure or view definition will be shown as used. Likewise every column, parameter, table, or procedure referenced in the expression that defines a view column will be shown as used by that column. No dependency information is shown for procedure parameters. Column level dependencies are not yet inferred through intervening temporary or common tables.

Example: SYSADMIN.Usage
SELECT * FROM SYSADMIN.Usage

Recursive common table queries can be used to determine transitive relationships.

Example: Finding all incoming usage
with im_using as (
    select 0 as level, uid, Uses_UID, Uses_Name, Uses_Object_Type, Uses_ElementName
      from usage where uid = (select uid from sys.tables where name='table name' and schemaName='schema name')
    union all
    select level + 1, usage.uid, usage.Uses_UID, usage.Uses_Name, usage.Uses_Object_Type, usage.Uses_ElementName
      from usage, im_using where level < 10 and usage.uid = im_using.Uses_UID) select * from im_using
Example: Finding all outgoing usage
with uses_me as (
    select 0 as level, uid, Uses_UID, Name, Object_Type, ElementName
      from usage where uses_uid = (select uid from sys.tables where name='table name' and schemaName='schema name')
    union all
    select level + 1, usage.uid, usage.Uses_UID, usage.Name, usage.Object_Type, usage.ElementName
      from usage, uses_me where level < 10 and usage.uses_uid = uses_me.UID) select * from uses_me
SYSADMIN.MatViews

The following table supplies information about all the materailized views in the virtual database.

Column name Type Description

VDBName

string

VDB name

SchemaName

string

Schema Name

Name

string

Short group name

TargetSchemaName

string

Name of the materialized table schema. Will be null for internal materialization.

TargetName

string

Name of the materialized table

Valid

boolean

True if materialized table is currently valid. Will be null for external materialization.

LoadState

boolean

The load state, can be one of NEEDS_LOADING, LOADING, LOADED, FAILED_LOAD. Will be null for external materialization.

Updated

timestamp

The timestamp of the last full refresh. Will be null for external materialization.

Cardinality

integer

The number of rows in the materialized view table. Will be null for external materialization.

Valid, LoadState, Updated, and Cardinality may be checked for external materialized views with the SYSADMIN.matViewStatus procedure.

Example: SYSADMIN.MatViews
SELECT * FROM SYSADMIN.MatViews
SYSADMIN.VDBResources

The following table provides the current VDB contents.

Column Name Type Description

resourcePath

string

The path to the contents.

contents

blob

The contents as a blob.
Example: SYSADMIN.VDBResources
SELECT * FROM SYSADMIN.VDBResources
SYSADMIN.Triggers

The following table provides the triggers in the virtual database.

Column name Type Description

VDBName

string

VDB name

SchemaName

string

Schema Name

TableName

string

Table name

Name

string

Trigger name

TriggerType

string

Trigger Type

TriggerEvent

string

Triggering Event

Status

string

Is Enabled

Body

clob

Trigger Action (FOR EACH ROW …)

TableUID

string

Table Unique ID
Example: SYSADMIN.Triggers
SELECT * FROM SYSADMIN.Triggers
SYSADMIN.Views

The following table provides the views in the virtual database.

Column name Type Description

VDBName

string

VDB name

SchemaName

string

Schema Name

Name

string

View name

Body

clob

View Definition Body (SELECT …)

UID

string

Table Unique ID
Example: SYSADMIN.Views
SELECT * FROM SYSADMIN.Views
SYSADMIN.StoredProcedures

The following table provides the StoredProcedures in the virtual database.

Column name Type Description

VDBName

string

VDB name

SchemaName

string

Schema Name

Name

string

Procedure name

Body

clob

Procedure Definition Body (BEGIN …)

UID

string

Unique ID
Example: SYSADMIN.StoredProcedures
SELECT * FROM SYSADMIN.StoredProcedures
SYSADMIN.Requests

The following table provides active requests against the virtual database.

VDBName string(255) NOT NULL,
Column name Type Description

VDBName

string

VDB name

SessionId

string

session identifier

ExecutionId

long

execution identifier

Command

clob

The query being executed

StartTimestamp

timestamp

Start timestamp

TransactionId

string

transaction identifier as reported by the Transaction Manager

ProcessingState

string

processing state, can be one of PROCESSING, DONE, CANCELED

ThreadState

string

thread state, can be one of RUNNING, QUEUED, IDLE
SYSADMIN.Sessions

The following table provides the Sessions active for the virtual database.

Column name Type Description

VDBName

string

VDB name

SessionId

string

session identifier

UserName

string

username

CreatedTime

timestamp

timestamp of when the session was created

ApplicationName

string

application name as reported by the client

IPAddress

string

IP Address as reported by the client
SYSADMIN.Transactions

The following table provides the active Transactions.

Column name Type Description

TransactionId

string

transaction identifier as reported by the Transaction Manager

SessionId

string

session identifier if a session is currently associated with the transaction

StartTimestamp

timestamp

start time of the transaction

Scope

string

scope of the transaction, can be one of GLOBAL, LOCAL, REQUEST, INHERITED. INHERITED means that a Transaction was already associated with the calling thread (embedded usage).

Note: Transactions that are not associated with a given session will always be shown. Transactions that are associated with a session must be for a session with the current VDB.

SYSADMIN.isLoggable

Tests if logging is enabled at the given level and context.

SYSADMIN.isLoggable(OUT loggable boolean NOT NULL RESULT, IN level string NOT NULL DEFAULT 'DEBUG', IN context string NOT NULL DEFAULT 'org.teiid.PROCESSOR')

Returns true if logging is enabled. level can be one of the log4j levels: OFF, FATAL, ERROR, WARN, INFO, DEBUG, TRACE. level defaults to 'DEBUG' and context defaults to 'org.teiid.PROCESSOR'

Example: isLoggable
IF ((CALL SYSADMIN.isLoggable(context=>'org.something'))
BEGIN
   DECLARE STRING msg;
   // logic to build the message ...
   CALL SYSADMIN.logMsg(msg=>msg, context=>'org.something')
END
SYSADMIN.logMsg

Log a message to the underlying logging system.

SYSADMIN.logMsg(OUT logged boolean NOT NULL RESULT, IN level string NOT NULL DEFAULT 'DEBUG', IN context string NOT NULL DEFAULT 'org.teiid.PROCESSOR', IN msg object)

Returns true if the message was logged. level can be one of the log4j levels: OFF, FATAL, ERROR, WARN, INFO, DEBUG, TRACE. The level defaults to 'DEBUG' and context defaults to 'org.teiid.PROCESSOR'. A null msg object will be logged as the string 'null'.

Example: logMsg
CALL SYSADMIN.logMsg(msg=>'some debug', context=>'org.something')

The preceding example will log the message 'some debug' at the default level DEBUG to the context org.something.

SYSADMIN.refreshMatView

Full refresh/load of an internal materialized view. Returns integer RowsUpdated. -1 indicates a load is in progress, otherwise the cardinality of the table is returned. See the Caching Guide for more information.

See also SYSADMIN.loadMatView

SYSADMIN.refreshMatView(OUT RowsUpdated integer NOT NULL RESULT, IN ViewName string NOT NULL, IN Invalidate boolean NOT NULL DEFAULT 'false')

SYSADMIN.refreshMatViewRow

Refreshes a row in an internal materialized view.

Returns integer RowsUpdated. -1 indicates the materialized table is currently invalid. 0 indicates that the specified row did not exist in the live data query or in the materialized table. See the Caching Guide for more information.

SYSADMIN.CREATE FOREIGN PROCEDURE refreshMatViewRow(OUT RowsUpdated integer NOT NULL RESULT, IN ViewName string NOT NULL, IN Key object NOT NULL, VARIADIC KeyOther object)

Example: SYSADMIN.refreshMatViewRow

The materialized view SAMPLEMATVIEW has 3 rows under the TestMat Model as below:

images/refresh_matview_rows_example.png

Assuming the primary key only contains one column, id, update the second row:

EXEC SYSADMIN.refreshMatViewRow('TestMat.SAMPLEMATVIEW', '101')

Assuming the primary key contains more columns, a and b, update the second row:

EXEC SYSADMIN.refreshMatViewRow('TestMat.SAMPLEMATVIEW', '101', 'a1', 'b1')

SYSADMIN.refreshMatViewRows

Refreshes rows in an internal materialized view.

Returns integer RowsUpdated. -1 indicates the materialized table is currently invalid. Any row that does not exist in the live data query or in the materialized table will not count toward the RowsUpdated. For more information, see the Teiid Caching Guide.

SYSADMIN.refreshMatViewRows(OUT RowsUpdated integer NOT NULL RESULT, IN ViewName string NOT NULL, VARIADIC Key object[] NOT NULL)

Example: SYSADMIN.refreshMatViewRows

Continuing use the SAMPLEMATVIEW in Example of SYSADMIN.refreshMatViewRow. Assuming the primary key only contains one column, id, update all rows:

EXEC SYSADMIN.refreshMatViewRows('TestMat.SAMPLEMATVIEW', ('100',), ('101',), ('102',))

Assuming the primary key comtain more columns, id, a and b compose of the primary key, update all rows:

EXEC SYSADMIN.refreshMatViewRows('TestMat.SAMPLEMATVIEW', ('100', 'a0', 'b0'), ('101', 'a1', 'b1'), ('102', 'a2', 'b2'))

SYSADMIN.setColumnStats

Set statistics for the given column.

SYSADMIN.setColumnStats(IN tableName string NOT NULL, IN columnName string NOT NULL, IN distinctCount long, IN nullCount long, IN max string, IN min string)

All stat values are nullable. Passing a null stat value will leave corresponding metadata value unchanged.

SYSADMIN.setProperty

Set an extension metadata property for the given record. Extension metadata is typically used by Translators.

SYSADMIN.setProperty(OUT OldValue clob NOT NULL RESULT, IN UID string NOT NULL, IN Name string NOT NULL, IN "Value" clob)

Setting a value to null will remove the property.

Example: Property Set
CALL SYSADMIN.setProperty(uid=>(SELECT uid FROM TABLES WHERE name='tab'), name=>'some name', value=>'some value')

The preceding example will set the property 'some name'='some value' on table tab.

Note
 The use of this procedure will not trigger replanning of associated prepared plans.

Properties from built-in teiid_* namespaces can be set using the the short form - namespace:key form.

SYSADMIN.setTableStats

Set statistics for the given table.

SYSADMIN.setTableStats(IN tableName string NOT NULL, IN cardinality long NOT NULL)
Note
 SYSADMIN.setColumnStats, SYSADMIN.setProperty, SYSADMIN.setTableStats are Metadata Procedures.

A MetadataRepository must be configured to make a non-temporary metadata update persistent. See the Developer’s Guide Runtime Metadata Updates section for more information.

SYSADMIN.matViewStatus

matViewStatus is used to retrieve the status of materialized views via schemaName and viewName.

Returns tables which contains TargetSchemaName, TargetName, Valid, LoadState, Updated, Cardinality, LoadNumber, OnErrorAction.

SYSADMIN.matViewStatus(IN schemaName string NOT NULL, IN viewName string NOT NULL) RETURNS TABLE (TargetSchemaName varchar(50), TargetName varchar(50), Valid boolean, LoadState varchar(25), Updated timestamp, Cardinality long, LoadNumber long, OnErrorAction varchar(25))

SYSADMIN.loadMatView

loadMatView is used to perform a complete refresh of an internal or external materialized table.

Returns integer RowsInserted. -1 indicates the materialized table is currently loading. And -3 indicates there was an exception when performing the load. See the Caching Guide for more information.

SYSADMIN.loadMatView(IN schemaName string NOT NULL, IN viewName string NOT NULL, IN invalidate boolean NOT NULL DEFAULT 'false') RETURNS integer
Example: loadMatView
exec SYSADMIN.loadMatView(schemaName=>'TestMat',viewname=>'SAMPLEMATVIEW', invalidate=>'true')

SYSADMIN.updateMatView

The updateMatView procedure is used to update a subset of an internal or external materialized table based on the refresh criteria.

The refresh criteria might reference the view columns by qualified name, but all instances of . in the view name will be replaced by _, because an alias is actually being used.

Returns integer RowsUpdated. -1 indicates the materialized table is currently invalid. And -3 indicates there was an exception when performing the update. See the Caching Guide for more information.

SYSADMIN.updateMatView(IN schemaName string NOT NULL, IN viewName string NOT NULL, IN refreshCriteria string) RETURNS integer
SYSADMIN.updateMatView

Continuing use the SAMPLEMATVIEW in Example of SYSADMIN.refreshMatViewRow. Update view rows:

EXEC SYSADMIN.updateMatView('TestMat', 'SAMPLEMATVIEW', 'id = ''101'' AND a = ''a1''')

SYSADMIN.cancelRequest

Cancel the user request identified by execution id for the given session.

See also SYSADMIN.REQUESTS

SYSADMIN.cancelRequest(OUT cancelled boolean NOT NULL RESULT, IN SessionId string NOT NULL, IN executionId long NOT NULL)
Example: Cancel
CALL SYSADMIN.cancelRequest('session id', 1)

SYSADMIN.terminateSession

Terminate the session with the given identifier.

See also SYSADMIN.SESSIONS

SYSADMIN.terminateSession(OUT terminated boolean NOT NULL RESULT, IN SessionId string NOT NULL)
Example: Termination
CALL SYSADMIN.terminateSession('session id')

SYSADMIN.terminateTransaction

Terminate the transaction associated with a session by marking the transaction as rollback only.

See also SYSADMIN.TRANSACTIONS

SYSADMIN.terminateTransaction(IN sessionid string NOT NULL)
Note
 You cannot only cancel transactions that are associated with a session.
Example: Terminate
CALL SYSADMIN.terminateTransaction('session id')

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