select *
into docs
from (values ('Enter one batch per field, don''t use ''GO''')
, ('Fields grow as you type')
, ('Use the [+] buttons to add more')
, ('See examples below for advanced usage') ) z(how_to_use_dbfiddle);
select * from docs;
| how_to_use_dbfiddle |
|---|
| Enter one batch per field, don't use 'GO' |
| Fields grow as you type |
| Use the [+] buttons to add more |
| See examples below for advanced usage |
| … |
--------------------------------------------------------------------------------
-- ① Execution Plans
--------------------------------------------------------------------------------
set statistics profile on;
select max('Do this to get execution plans and stats') "Execution Plans"
from docs d1 cross join docs d2;
set statistics profile off;
| Execution Plans |
|---|
| Do this to get execution plans and stats |
| … |
| Rows | Executes | StmtText | StmtId | NodeId | Parent | PhysicalOp | LogicalOp | Argument | DefinedValues | EstimateRows | EstimateIO | EstimateCPU | AvgRowSize | TotalSubtreeCost | OutputList | Warnings | Type | Parallel | EstimateExecutions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | select max('Do this to get execution plans and stats') "Execution Plans" from docs d1 cross join docs d2 | 1 | 1 | 0 | 1 | 0.00689848 | SELECT | False | ||||||||||
| 1 | 1 | |--Stream Aggregate(DEFINE:([Expr1004]=MAX('Do this to get execution plans and stats'))) | 1 | 2 | 1 | Stream Aggregate | Aggregate | [Expr1004]=MAX('Do this to get execution plans and stats') | 1 | 0 | 1.01E-05 | 31 | 0.00689848 | [Expr1004] | PLAN_ROW | False | 1 | ||
| 16 | 1 | |--Nested Loops(Inner Join) | 1 | 3 | 2 | Nested Loops | Inner Join | 16 | 0 | 6.688E-05 | 9 | 0.00688838 | NO JOIN PREDICATE | PLAN_ROW | False | 1 | |||
| 4 | 1 | |--Table Scan(OBJECT:([fiddle_7ce3ca94f6e64aaf88f62c57ccca5fdf].[dbo].[docs] AS [d2])) | 1 | 4 | 3 | Table Scan | Table Scan | OBJECT:([fiddle_7ce3ca94f6e64aaf88f62c57ccca5fdf].[dbo].[docs] AS [d2]) | 4 | 0.003125 | 0.0001614 | 9 | 0.0032864 | PLAN_ROW | False | 1 | |||
| 16 | 4 | |--Table Scan(OBJECT:([fiddle_7ce3ca94f6e64aaf88f62c57ccca5fdf].[dbo].[docs] AS [d1])) | 1 | 5 | 3 | Table Scan | Table Scan | OBJECT:([fiddle_7ce3ca94f6e64aaf88f62c57ccca5fdf].[dbo].[docs] AS [d1]) | 4 | 0.0032035 | 8.29E-05 | 9 | 0.0035351 | PLAN_ROW | False | 4 | |||
| … | |||||||||||||||||||
--------------------------------------------------------------------------------
-- Or use XML to see the visual representation, thanks to Justin Pealing and
-- his library: https://github.com/JustinPealing/html-query-plan
--------------------------------------------------------------------------------
set statistics xml on;
select max('Do this to get execution plans and stats') "Execution Plans"
from docs d1 cross join docs d2;
set statistics xml off;
| Execution Plans |
|---|
| Do this to get execution plans and stats |
| … |
| Microsoft SQL Server 2005 XML Showplan |
|---|
| <ShowPlanXML xmlns="http://schemas.microsoft.com/sqlserver/2004/07/showplan" Version="1.481" Build="14.0.3030.27"><BatchSequence><Batch><Statements><StmtSimple StatementText="select max('Do this to get execution plans and stats') "Execution Plans"
from docs d1 cross join docs d2" StatementId="1" StatementCompId="2" StatementType="SELECT" RetrievedFromCache="true" StatementSubTreeCost="0.00689848" StatementEstRows="1" SecurityPolicyApplied="false" StatementOptmLevel="FULL" QueryHash="0x9BEA186AE6E95E86" QueryPlanHash="0xC79ED7BBB7BC4A7F" StatementOptmEarlyAbortReason="GoodEnoughPlanFound" CardinalityEstimationModelVersion="140"><StatementSetOptions QUOTED_IDENTIFIER="true" ARITHABORT="true" CONCAT_NULL_YIELDS_NULL="true" ANSI_NULLS="true" ANSI_PADDING="true" ANSI_WARNINGS="true" NUMERIC_ROUNDABORT="false"></StatementSetOptions><QueryPlan DegreeOfParallelism="0" NonParallelPlanReason="NoParallelPlansInDesktopOrExpressEdition" CachedPlanSize="16" CompileTime="0" CompileCPU="0" CompileMemory="152"><MemoryGrantInfo SerialRequiredMemory="0" SerialDesiredMemory="0"></MemoryGrantInfo><OptimizerHardwareDependentProperties EstimatedAvailableMemoryGrant="419378" EstimatedPagesCached="26211" EstimatedAvailableDegreeOfParallelism="1" MaxCompileMemory="2058336"></OptimizerHardwareDependentProperties><TraceFlags IsCompileTime="1"><TraceFlag Value="8017" Scope="Global"></TraceFlag></TraceFlags><TraceFlags IsCompileTime="0"><TraceFlag Value="8017" Scope="Global"></TraceFlag></TraceFlags><QueryTimeStats ElapsedTime="0" CpuTime="0"></QueryTimeStats><RelOp NodeId="0" PhysicalOp="Stream Aggregate" LogicalOp="Aggregate" EstimateRows="1" EstimateIO="0" EstimateCPU="1.01e-005" AvgRowSize="31" EstimatedTotalSubtreeCost="0.00689848" Parallel="0" EstimateRebinds="0" EstimateRewinds="0" EstimatedExecutionMode="Row"><OutputList><ColumnReference Column="Expr1004"></ColumnReference></OutputList><RunTimeInformation><RunTimeCountersPerThread Thread="0" ActualRows="1" Batches="0" ActualExecutionMode="Row" ActualElapsedms="0" ActualCPUms="0" ActualEndOfScans="1" ActualExecutions="1"></RunTimeCountersPerThread></RunTimeInformation><StreamAggregate><DefinedValues><DefinedValue><ColumnReference Column="Expr1004"></ColumnReference><ScalarOperator ScalarString="MAX('Do this to get execution plans and stats')"><Aggregate Distinct="0" AggType="MAX"><ScalarOperator><Const ConstValue="'Do this to get execution plans and stats'"></Const></ScalarOperator></Aggregate></ScalarOperator></DefinedValue></DefinedValues><RelOp NodeId="1" PhysicalOp="Nested Loops" LogicalOp="Inner Join" EstimateRows="16" EstimateIO="0" EstimateCPU="6.688e-005" AvgRowSize="9" EstimatedTotalSubtreeCost="0.00688838" Parallel="0" EstimateRebinds="0" EstimateRewinds="0" EstimatedExecutionMode="Row"><OutputList></OutputList><Warnings NoJoinPredicate="1"></Warnings><RunTimeInformation><RunTimeCountersPerThread Thread="0" ActualRows="16" Batches="0" ActualExecutionMode="Row" ActualElapsedms="0" ActualCPUms="0" ActualEndOfScans="1" ActualExecutions="1"></RunTimeCountersPerThread></RunTimeInformation><NestedLoops Optimized="0"><RelOp NodeId="2" PhysicalOp="Table Scan" LogicalOp="Table Scan" EstimateRows="4" EstimatedRowsRead="4" EstimateIO="0.003125" EstimateCPU="0.0001614" AvgRowSize="9" EstimatedTotalSubtreeCost="0.0032864" TableCardinality="4" Parallel="0" EstimateRebinds="0" EstimateRewinds="0" EstimatedExecutionMode="Row"><OutputList></OutputList><RunTimeInformation><RunTimeCountersPerThread Thread="0" ActualRows="4" Batches="0" ActualExecutionMode="Row" ActualElapsedms="0" ActualCPUms="0" ActualScans="1" ActualLogicalReads="1" ActualPhysicalReads="0" ActualReadAheads="0" ActualLobLogicalReads="0" ActualLobPhysicalReads="0" ActualLobReadAheads="0" ActualRowsRead="4" ActualEndOfScans="1" ActualExecutions="1"></RunTimeCountersPerThread></RunTimeInformation><TableScan Ordered="0" ForcedIndex="0" ForceScan="0" NoExpandHint="0" Storage="RowStore"><DefinedValues></DefinedValues><Object Database="[fiddle_7ce3ca94f6e64aaf88f62c57ccca5fdf]" Schema="[dbo]" Table="[docs]" Alias="[d2]" IndexKind="Heap" Storage="RowStore"></Object></TableScan></RelOp><RelOp NodeId="3" PhysicalOp="Table Scan" LogicalOp="Table Scan" EstimateRows="4" EstimatedRowsRead="4" EstimateIO="0.0032035" EstimateCPU="8.29e-005" AvgRowSize="9" EstimatedTotalSubtreeCost="0.0035351" TableCardinality="4" Parallel="0" EstimateRebinds="0" EstimateRewinds="3" EstimatedExecutionMode="Row"><OutputList></OutputList><RunTimeInformation><RunTimeCountersPerThread Thread="0" ActualRows="16" Batches="0" ActualExecutionMode="Row" ActualElapsedms="0" ActualCPUms="0" ActualScans="1" ActualLogicalReads="4" ActualPhysicalReads="0" ActualReadAheads="0" ActualLobLogicalReads="0" ActualLobPhysicalReads="0" ActualLobReadAheads="0" ActualRowsRead="16" ActualEndOfScans="4" ActualExecutions="4"></RunTimeCountersPerThread></RunTimeInformation><TableScan Ordered="0" ForcedIndex="0" ForceScan="0" NoExpandHint="0" Storage="RowStore"><DefinedValues></DefinedValues><Object Database="[fiddle_7ce3ca94f6e64aaf88f62c57ccca5fdf]" Schema="[dbo]" Table="[docs]" Alias="[d1]" IndexKind="Heap" Storage="RowStore"></Object></TableScan></RelOp></NestedLoops></RelOp></StreamAggregate></RelOp></QueryPlan></StmtSimple></Statements></Batch></BatchSequence></ShowPlanXML> |
| … |
--------------------------------------------------------------------------------
-- ② Integers table
--------------------------------------------------------------------------------
with
p0(i) as (select 1 union all select 1 union all select 1 union all select 1)
, p1(i) as (select 1 from p0 as a, p0 as b, p0 as c, p0 as d, p0 as e)--1K rows
, p2(i) as (select 1 from p1 as a, p1 as b)--1M rows
select row_number() over(order by i) as val
into integers
from p2