DataGrip 2024.1 Help

Code completion

This section covers various techniques of context-aware code completion that allow you to speed up your coding process.

Basic completion

Basic code completion helps you complete statements, database object names, parameters, and keywords within the visibility scope.

When you invoke code completion, DataGrip analyzes the context and suggests the choices that are reachable from the current caret position (suggestions also include Live templates) .

Invoke basic completion

  1. Start typing a name.

  2. Press Ctrl+Space or choose Code | Code Completion | Basic from the main menu.

    Basic completion

Consider the following list of actions that you can perform with basic code completion:

Complete a list of fields for SELECT statements

  • Complete a list of fields for SELECT statements.

    Example of the SELECT statement completion

Complete JOIN statements by using a foreign key

  • Complete the JOIN statement if tables are connected with a foreign key. To invert an order of operands in the JOIN condition, open Settings Ctrl+Alt+S and navigate to Editor | General | Code Completion. In the SQL | JOIN clauses section, select the Invert order of operands in auto-generated ON clause checkbox. Compare an order of operands on the following screenshot with this option on and off.

    Example of the JOIN statement completion

Complete a list of fields for INSERT statements

  • Complete a list of fields for INSERT statements.

    Example of the INSERT statement completion

Completion for window functions

  • When you use a window function, DataGrip automatically adds OVER() and puts the caret into the appropriate place.

Complete a list of fields for GROUP BY statements

  • Complete a list of fields for GROUP BY statements.

    Example of the INSERT statement completion

Complete abbreviated names

  • Complete names of database objects that are written in camelCase, hyphenated-object-names, or names_with_underscore. To start completion, use the first letters of words in the name.

    Example of completion for abbreviated names

Complete abbreviated statements

  • Complete names of abbreviated statements. To start completion, use the first letters of words in the name.

    Example of completion for abbreviated names

Complete names of new objects

  • Complete names of newly-created objects in a DDL statement (for example, after the ALTER clause).

    Example of the ALTER statement completion

Generate aliases

  • Generate aliases for objects. To display the suggestion list, press Ctrl+Space.

  • To automatically add an alias for a table when you use auto-completion, go to Settings Ctrl+Alt+S and navigate to Editor | General | Code Completion. In the SQL | Table aliases section, select the Automatically add aliases when completing table names checkbox. After that, each time you autocomplete a table name, DataGrip will generate an alias for the table.

    If you want to set your own aliases for database objects, click the Add alias icon in the Custom aliases table. Type the object name in the Table name column and the desired alias in the Alias column.

    Generate aliases

Type-matching completion

Smart type-matching code completion filters the suggestion list and shows only the types applicable to the current context.

Invoke type-matching completion

  1. Start typing a query. By default, DataGrip displays the code completion popup automatically as you type. If automatic completion is disabled, press Ctrl+Shift+Space or choose Code | Code Completion | Type-Matching from the main menu.

  2. Press Ctrl+Shift+Space or choose Code | Code Completion | Type-Matching from the main menu.

    The most suitable suggestion for the current context is highlighted.

The following example shows different suggestion lists for basic (Ctrl+Space) and smart type-matching completion Ctrl+Shift+Space.

  • Type-matching completion Ctrl+Shift+Space

    Smart and basic completion
  • Basic code completion Ctrl+Space

    Smart and basic completion

Statement completion

You can create syntactically correct code constructs by using statement completion Ctrl+Shift+Enter. It inserts the necessary syntax elements (parentheses, braces, and semicolons) and gets you in a position where you can start typing the next statement.

Hippie completion

Hippie completion is a completion engine that analyses your text in the visible scope and generates suggestions from the current context. It helps you complete any word from any of the currently opened files.

Expand a string at caret to an existing word

  1. Type the initial string and do one of the following:

    • Press Alt+/ or choose Code | Code Completion | Cyclic Expand Word to search for matching words before the caret.

    • Press Alt+Shift+/ or choose Code | Code Completion | Cyclic Expand Word (Backward) to search for matching words after the caret and in other open files.

    The first suggested value appears, and the prototype is highlighted in the source code.

  2. Accept the suggestion, or hold the Alt key and keep pressing / until the desired word is found.

The following example shows hippie completion for the value in the INSERT statement:

Postfix code completion

Postfix code completion helps you reduce backward caret jumps as you write code. You can transform an already-typed expression to a different one based on a postfix you type after the dot, the type of expression, and its context.

Enable and configure postfix completion

  • In the Settings dialog (Ctrl+Alt+S), open Editor | General | Postfix Completion and select the Enable postfix completion checkbox.

  • Select Tab, Space, or Enter to be used for expanding postfix templates.

  • Enable/disable a particular postfix template for the selected language.

Transform a statement with a postfix

  1. Type an expression and then type a postfix after a dot.

  2. Press Tab.

You can disable certain postfix completion templates in the Editor | General | Postfix Completion page of the IDE settingsĀ  Ctrl+Alt+S. DataGrip includes the following predefined templates:





SELECT actor.from
SELECT ... FROM actor


SELECT actor.cfrom
SELECT actor_id, first_name, last_name, last_update FROM actor


SELECT actor.afrom
SELECT actor_id AS ai, first_name AS fn, last_name AS ln, last_update AS lu FROM actor


SELECT actor.cast
SELECT cast(actor AS ...)


SELECT actor.join
SELECT * FROM actor JOIN film_actor fa ON actor.actor_id = fa.actor_id

Create custom postfix templates

  1. Press Ctrl+Alt+S to open the IDE settings and then select Editor | General | Postfix Completion.

  2. Click the Add button (the Add button) on the toolbar and select SQL.

  3. Specify Key, a combination of symbols that will invoke the template.

  4. Select which dialects the new template will be applicable to, and type the target expression in the following format: $EXPR$ <target_expression>, for example, * FROM $EXPR$;.

    Create a postfix template

Completion of tags and attributes

DataGrip automatically completes names and values of tags and attributes in HTML/XHTML, XML/XSL, and JSON.

Completion of tags and attribute names is based on the DTD or Schema the file is associated with. If there is no schema association, DataGrip will use the file content (tag and attribute names and their values) to complete your input.

Complete tag names

  1. Type the opening < and then start typing the tag name. DataGrip displays the list of tag names appropriate in the current context.

    Use the Up and Down buttons to scroll through the list.

  2. Press Enter to accept a selection from the list. If your file is associated with a schema or a DTD, DataGrip automatically inserts the mandatory attributes according to it.

    Tags completion

Machine-learning-assisted completion ranking

DataGrip allows you to prioritize completion suggestions based on choices that other users made in similar situations.

The ML completion mechanism doesn't add any new elements but orders the elements retrieved from code. Data is not exposed anywhere; it is collected locally.

Enable ML completion

  1. Press Ctrl+Alt+S to open the IDE settings and select Editor | General | Code Completion.

  2. Under Machine Learning-Assisted Completion, enable the Sort completion suggestions based on machine learning option, and select the languages for which you want to use ML completion.

    ML-assisted completion settings

Enable relevance markers

  1. Press Ctrl+Alt+S to open the IDE settings and select Editor | General | Code Completion.

  2. Enable the following options:

    • Mark position changes in the completion popup: use the Machine Learning ranking Up and Machine Learning ranking Down icons to indicate whether the relevance of a suggestion is increasing or decreasing and therefore the suggestion has moved up or down the suggestion list.

    • Mark the most relevant item in the completion popup: use the ML relevant proposal icon to indicate the most suitable suggestion on the list.

    ML-assisted completion with markers

Configure code completion settings

Configure completion options

  1. Press Ctrl+Alt+S to open the IDE settings and then select Editor | General | Code Completion.

    • To automatically display the suggestion list, select the Show suggestions as you type checkbox. If the checkbox is cleared, you have to call code completion explicitly by pressing Ctrl+Space for basic completion or Ctrl+Shift+Space for type-matching completion.

    • To sort suggestions in the alphabetical order, instead of sorting them by relevance, select the Sort suggestions alphabetically checkbox.

      You can also toggle these modes by clicking the Sort Alphabetically button or the Sort by Relevance button respectively in the lower-right corner of the suggestion list.

    • If you want the word case to be taken into account when suggesting completion options, select Match case and choose whether you want to match case for first letters only, or for all letters.

    • If you want the documentation popup to be displayed automatically for each item in the suggestion list as you scroll it, select the Show documentation popup in option. In the field to the right, specify the delay (in milliseconds), after which the popup should appear.

Completion tips and tricks

Open completion settings from the completion popup

You can quickly access code completion settings right from the completion popup.

  • Click the icon in the completion popup and select Code Completion Settings.

    Opening completion settings

After that, the Editor | General | Code Completion page of the IDE settingsĀ  Ctrl+Alt+S opens.

Narrow down the suggestion list

  • You can narrow down the suggestion list by typing any part of a word (even characters from somewhere in the middle) or invoking code completion after a dot separator . DataGrip will show suggestions that include the characters you have entered in any positions.

    This makes the use of wildcards unnecessary.

    In case of CamelCase or snake_case names, type the initial letters only. DataGrip automatically recognizes and matches the initial letters.

    Code completion Wild Card

Accept a suggestion

You can accept a suggestion from the list in one of the following ways:

  • Press Enter or double-click a list item to insert it to the left of the caret.

  • Press Tab to replace the characters to the right from the caret.

  • Use Ctrl+Shift+Enter to make the current code construct syntactically correct (balance parentheses, add missing braces and semicolons, and so on).

  • You can also use specific keys and custom characters to accept the selected completion suggestion. To enable these features, go to the Editor | General | Code Completion page of the IDE settingsĀ  Ctrl+Alt+S and do the following:

    1. To use specific keys, select the Insert the selected suggestion by pressing space, dot, or other context-dependent keys checkbox. These keys depend on the language, your context, and so on.

    2. To also use custom characters, enter the characters into the Additional characters to accept the completion field.

View reference

  • You can use the Quick Information view by pressing Ctrl+Q when you select an entry in the suggestion list:

    Quick documentation


If code completion doesn't work, this may be due to one of the following reasons:

  • The Power Save Mode is on (File | Power Save Mode). Turning it on minimizes power consumption of your laptop by eliminating the background operations, including error highlighting, on-the-fly inspections, and code completion.

  • Code completion popup might not appear automatically if it takes too long to gather the completion options. For example, if the computer is busy with another task. In this case, you may still activate the completion popup manually via Ctrl+Space hotkey.

Last modified: 24 April 2024