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Ensure images in the docs have alt tags for screen readers. Fixes #2903

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Murtuza Zabuawala
2018-01-11 16:58:30 +00:00
committed by Dave Page
parent 8b3aecd137
commit b78b97d89b
65 changed files with 899 additions and 599 deletions
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11
docs/en_US/primary_key_dialog.rst
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@@ -6,9 +6,10 @@ The Primary key Dialog
Use the *Primary key* dialog to create or modify a primary key constraint. A primary key constraint indicates that a column, or group of columns, uniquely identifies rows in a table. This requires that the values in the selected column(s) be both unique and not null.
The *Primary key* dialog organizes the development of a primary key constraint through the *General* and *Definition* tabs. The *SQL* tab displays the SQL code generated by dialog selections.
The *Primary key* dialog organizes the development of a primary key constraint through the *General* and *Definition* tabs. The *SQL* tab displays the SQL code generated by dialog selections.
.. image:: images/primary_key_general.png
:alt: Primary key dialog general tab
Use the fields in the *General* tab to identify the primary key:
@@ -17,6 +18,7 @@ Use the fields in the *General* tab to identify the primary key:
Click the *Definition* tab to continue.
.. image:: images/primary_key_definition.png
:alt: Primary key dialog definition tab
Use the fields in the *Definition* tab to define the primary key constraint:
@@ -29,17 +31,18 @@ Use the fields in the *Definition* tab to define the primary key constraint:
Click the *SQL* tab to continue.
Your entries in the *Primary key* dialog generate a SQL command (see an example below). Use the *SQL* tab for review; revisit or switch tabs to make any changes to the SQL command.
Your entries in the *Primary key* dialog generate a SQL command (see an example below). Use the *SQL* tab for review; revisit or switch tabs to make any changes to the SQL command.
**Example**
The following is an example of the sql command generated by user selections in the *Primary key* dialog:
The following is an example of the sql command generated by user selections in the *Primary key* dialog:
.. image:: images/primary_key_sql.png
:alt: Primary key dialog sql tab
The example shown demonstrates creating a primary key constraint named *dept_pkey* on the *dept_id* column of the *dept* table.
* Click the *Info* button (i) to access online help. View context-sensitive help in the *Tabbed browser*, where a new tab displays the PostgreSQL core documentation.
* Click the *Save* button to save work.
* Click the *Cancel* button to exit without saving work.