The chart component

A component that plots data. Line, area, bar, and pie charts are all supported. Each item in the component is a data point in the graph.

Top-level parameters

name required type description
type REQUIRED

TEXT

The type of chart. One of: "line", "area", "bar", "column", "pie", "scatter", "bubble", "heatmap", "rangeBar"
class

TEXT

class attribute added to the container in HTML. It can be used to apply custom styling to this item through css. Added in v0.18.0.
color

COLOR

The name of a color in which to display the chart. If there are multiple series in the chart, this parameter can be repeated multiple times.
height

INTEGER

Height of the chart, in pixels. By default: 250
horizontal

BOOLEAN

Displays a bar chart with horizontal bars instead of vertical ones.
id

TEXT

id attribute added to the container in HTML. It can be used to target this item through css or for scrolling to this item through links (use "#id" in link url).
labels

BOOLEAN

Whether to show the data labels on the chart or not.
logarithmic

BOOLEAN

Display the y-axis in logarithmic scale.
marker

REAL

Marker size
stacked

BOOLEAN

Whether to cumulate values from different series.
time

BOOLEAN

Whether the x-axis represents time. If set to true, the x values will be parsed and formatted as dates for the user.
title

TEXT

The name of the chart.
toolbar

BOOLEAN

Whether to display a toolbar at the top right of the chart, that offers downloading the data as CSV.
xticks

INTEGER

Number of ticks on the x axis.
xtitle

TEXT

Title of the x axis, displayed below it.
ymax

REAL

The maximum value for the y-axis.
ymin

REAL

The minimal value for the y-axis.
ystep

REAL

Step between ticks on the y axis.
ytitle

TEXT

Title of the y axis, displayed to its left.
ztitle

TEXT

Title of the z axis, displayed in tooltips.

Row-level parameters

name required type description
x REQUIRED

REAL

The value of the point on the horizontal axis
y REQUIRED

REAL

The value of the point on the vertical axis
label

REAL

An alias for parameter "x"
series

TEXT

If multiple series are represented and share the same y-axis, this parameter can be used to distinguish between them.
value

REAL

An alias for parameter "y"

Example 1

An area chart representing a time series, using the top-level property time. Ticks on the x axis are adjusted automatically, and ISO datetimes are parsed and displayed in a readable format.

select 
    'chart'             as component,
    'Quarterly Revenue' as title,
    'area'              as type,
    'indigo'            as color,
    5                   as marker,
    TRUE                as time;
select 
    '2022-01-01T00:00:00Z' as x,
    15                     as y;
select 
    '2022-04-01T00:00:00Z' as x,
    46                     as y;
select 
    '2022-07-01T00:00:00Z' as x,
    23                     as y;
select 
    '2022-10-01T00:00:00Z' as x,
    70                     as y;
select 
    '2023-01-01T00:00:00Z' as x,
    35                     as y;
select 
    '2023-04-01T00:00:00Z' as x,
    106                    as y;
select 
    '2023-07-01T00:00:00Z' as x,
    53                     as y;

Result

Quarterly Revenue

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Example 2

A pie chart.

select 
    'chart'   as component,
    'Answers' as title,
    'pie'     as type,
    TRUE      as labels;
select 
    'Yes' as label,
    65    as value;
select 
    'No' as label,
    35   as value;

Result

Answers

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Example 3

A basic bar chart

select 
    'chart'             as component,
    'bar'               as type,
    'Quarterly Results' as title,
    TRUE                as horizontal,
    TRUE                as labels;
select 
    'Tom' as label,
    35    as value;
select 
    'Olive' as label,
    15      as value;

Result

Quarterly Results

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Example 4

A TreeMap Chart allows you to display hierarchical data in a nested layout. This is useful for visualizing the proportion of each part to the whole.

select 
    'chart'   as component,
    'treemap' as type,
    'Quarterly Results By Region (in k$)' as title,
    TRUE      as labels;
select 
    'North America' as series,
    'United States' as label,
    35              as value;
select 
    'North America' as series,
    'Canada'        as label,
    15              as value;
select 
    'Europe' as series,
    'France' as label,
    30       as value;
select 
    'Europe'  as series,
    'Germany' as label,
    55        as value;
select 
    'Asia'  as series,
    'China' as label,
    20      as value;
select 
    'Asia'  as series,
    'Japan' as label,
    10      as value;

Result

Quarterly Results By Region (in k$)

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Example 5

A bar chart with multiple series.

select 
    'chart'    as component,
    'Expenses' as title,
    'bar'      as type,
    TRUE       as stacked,
    TRUE       as toolbar,
    10         as ystep;
select 
    'Marketing' as series,
    2021        as x,
    35          as value;
select 
    'Marketing' as series,
    2022        as x,
    15          as value;
select 
    'Human resources' as series,
    2021              as x,
    30                as value;
select 
    'Human resources' as series,
    2022              as x,
    55                as value;

Result

Expenses

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Example 6

A line chart with multiple series. One of the most common types of charts, often used to show trends over time. Also demonstrates the use of the toolbar attribute to allow the user to download the graph as an image or the data as a CSV file.

select 
    'chart'   as component,
    'Revenue' as title,
    0         as ymin,
    TRUE      as toolbar;
select 
    'Chicago Store' as series,
    2021            as x,
    35              as value;
select 
    'Chicago Store' as series,
    2022            as x,
    15              as value;
select 
    'Chicago Store' as series,
    2023            as x,
    45              as value;
select 
    'New York Store' as series,
    2021             as x,
    30               as value;
select 
    'New York Store' as series,
    2022             as x,
    55               as value;
select 
    'New York Store' as series,
    2023             as x,
    19               as value;

Result

Revenue

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Example 7

A scatter plot with multiple custom options.

select 
    'chart'               as component,
    'Gross domestic product and its growth' as title,
    'scatter'             as type,
    'Growth Rate'         as xtitle,
    'GDP (Trillions USD)' as ytitle,
    500                   as height,
    8                     as marker,
    0                     as xmin,
    10                    as xmax,
    0                     as ymin,
    25                    as ymax,
    5                     as yticks;
select 
    'Brazil' as series,
    2.5      as x,
    2        as y;
select 
    'China' as series,
    6.5     as x,
    14      as y;
select 
    'United States' as series,
    2.3             as x,
    21              as y;
select 
    'France' as series,
    1.5      as x,
    3        as y;
select 
    'South Africa' as series,
    0.9            as x,
    0.3            as y;

Result

Gross domestic product and its growth

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Example 8

Heatmaps

You can build heatmaps using the heatmap top-level property.

The data format follows the apexcharts heatmap format, where each series is represented as a line in the chart:

  • The x property of each item will be used as the x-axis value.
  • The series property of each item will be used as the y-axis value.
  • The y property of each item will be used as the value to display in the heatmap

The color property sets the color of each series separately, in order.

select 
    'chart'                     as component,
    'Survey Results'            as title,
    'heatmap'                   as type,
    'Database managemet system' as ytitle,
    'Year'                      as xtitle,
    'purple'                    as color,
    'purple'                    as color,
    'purple'                    as color;
select 
    'PostgreSQL' as series,
    '2000'       as x,
    48           as y;
select 
    'SQLite' as series,
    '2000'   as x,
    44       as y;
select 
    'MySQL' as series,
    '2000'  as x,
    78      as y;
select 
    'PostgreSQL' as series,
    '2010'       as x,
    65           as y;
select 
    'SQLite' as series,
    '2010'   as x,
    62       as y;
select 
    'MySQL' as series,
    '2010'  as x,
    83      as y;
select 
    'PostgreSQL' as series,
    '2020'       as x,
    73           as y;
select 
    'SQLite' as series,
    '2020'   as x,
    38       as y;
select 
    'MySQL' as series,
    '2020'  as x,
    87      as y;

Result

Survey Results

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Example 9

A timeline displaying events with a start and an end date

select 
    'chart'            as component,
    'Project Timeline' as title,
    'rangeBar'         as type,
    TRUE               as time,
    'teal'             as color,
    'cyan'             as color,
    TRUE               as labels,
    '2021-12-28'       as xmin,
    '2022-01-04'       as xmax;
select 
    'Phase 1'    as series,
    'Operations' as label,
    '2021-12-29' as value,
    '2022-01-02' as value;
select 
    'Phase 2'    as series,
    'Operations' as label,
    '2022-01-03' as value,
    '2022-01-04' as value;
select 
    'Yearly maintenance' as series,
    'Maintenance'        as label,
    '2022-01-01'         as value,
    '2022-01-03'         as value;

Result

Project Timeline

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Example 10

Multiple charts on the same line

You can create information-dense dashboards by using the card component to put multiple charts on the same line.

For this, create one sql file per visualization you want to show, and set the embed attribute of the card component to the path of the file you want to include, followed by ?_sqlpage_embed.

select 
    'card' as component,
    'A dashboard with multiple graphs on the same line' as title,
    2      as columns;
select 
    '/examples/chart.sql?color=green&n=42&_sqlpage_embed' as embed;
select 
    '/examples/chart.sql?_sqlpage_embed' as embed;

Result

A dashboard with multiple graphs on the same line

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See also: other components