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Overview
| Comment: | Tweaks to lang_insert.html. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
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| SHA1: |
15cc2204a5ed314ed00be3720ec39871 |
| User & Date: | dan 2010-09-18 18:52:32.000 |
Context
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2010-09-20
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| 19:09 | Changes to lang_update.html to make it more testable. (check-in: 5df6adc2a9 user: dan tags: trunk) | |
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2010-09-18
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| 18:52 | Tweaks to lang_insert.html. (check-in: 15cc2204a5 user: dan tags: trunk) | |
| 15:03 | Remove the tags from a couple of untestable statements in lang_select.html. (check-in: 0df9f2d381 user: dan tags: trunk) | |
Changes
Changes to pages/lang.in.
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<tcl>
##############################################################################
Section INSERT insert {INSERT *INSERTs}
BubbleDiagram insert-stmt 1
</tcl>
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<tcl>
##############################################################################
Section INSERT insert {INSERT *INSERTs}
BubbleDiagram insert-stmt 1
</tcl>
<p>The INSERT statement comes in three basic forms.
<ul>
<li><p>^The first form (with the "VALUES" keyword) creates a single new row in
an existing table. ^If no column-list is specified then the number of
values must be the same as the number of columns in the table. ^In this case
the result of evaluting the left-most expression in the VALUES list is
inserted into the left-most column of the new row, and so on. ^If a
column-list is specified, then the number of values must match the number of
specified columns. ^Each of the named columns of the new row is populated
with the results of evaluating the corresponding VALUES expression. ^Table
columns that do not appear in the column list are populated with the default
column value (specified as part of the CREATE TABLE statement), or with NULL if
no default value is specified.
<li><p>The second form of the INSERT statement contains a SELECT statement
instead of a VALUES clause. ^A new entry is inserted into the table for each
row of data returned by executing the SELECT statement. ^If a column-list is
specified, the number of columns in the result of the SELECT must be the same
as the number of items in the column-list. ^Otherwise, if no column-list is
specified, the number of columns in the result of the SELECT must be the same
as the number of columns in the table. ^Any SELECT statement, including
compound SELECTs and SELECT statements with ORDER BY and/or LIMIT clauses,
may be used in an INSERT statement of this form.
<li><p>The third form of an INSERT statement is with DEFAULT VALUES.
^(The INSERT ... DEFAULT VALUES statement inserts a single new row into the
named table.)^ ^Each column of the new row is populated with its default value,
or with a NULL if no default value is specified as part of the column
definition in the CREATE TABLE statement.
</ul>
<p>^The optional conflict-clause allows the specification of an alternative
constraint conflict resolution algorithm to use during this one INSERT command.
See the section titled
[ON CONFLICT] for additional information.
^For compatibility with MySQL, the parser allows the use of the
single keyword <a href="lang_replace.html">REPLACE</a> as an
alias for "INSERT OR REPLACE".
<p>^(The optional "<i>database-name</i><b>.</b>" prefix on the <i>table-name</i>
is support for top-level INSERT statements only.)^ ^The table name must be
unqualified for INSERT statements that occur within [CREATE TRIGGER] statements.
^Similarly, the "DEFAULT VALUES" form of the INSERT statement is supported for
top-level INSERT statements only and not for INSERT statements within
triggers.
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