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Added the last_insert_rowid API function. Improved documentation of

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the random ROWID algorithm. (CVS 349)

FossilOrigin-Name: f74d61aaf3fec06cde2c4a6f1465f86ac9058ad2
This commit is contained in:
drh
2002-01-16 21:00:27 +00:00
parent a297b5c3cf
commit af9ff33ac1
16 changed files with 154 additions and 39 deletions
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20
www/c_interface.tcl
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@ -1,7 +1,7 @@
#
# Run this Tcl script to generate the sqlite.html file.
#
set rcsid {$Id: c_interface.tcl,v 1.22 2001/12/22 19:27:41 drh Exp $}
set rcsid {$Id: c_interface.tcl,v 1.23 2002/01/16 21:00:28 drh Exp $}
puts {<html>
<head>
@ -305,6 +305,8 @@ useful interfaces. These extended routines are as follows:
</p>
<blockquote><pre>
int sqlite_last_insert_rowid(sqlite*);
int sqlite_get_table(
sqlite*,
char *sql,
@ -371,6 +373,22 @@ int sqlite_get_table_vprintf(
<p>All of the above definitions are included in the "sqlite.h"
header file that comes in the source tree.</p>
<h2>The ROWID of the most recent insert</h2>
<p>Every row of an SQLite table has a unique integer key. If the
table has a column labeled INTEGER PRIMARY KEY, then that column
servers as the key. If there is no INTEGER PRIMARY KEY column then
the key is a random integer. The key for a row can be accessed in
a SELECT statement or used in a WHERE or ORDER BY clause using any
of the names "ROWID", "OID", or "_ROWID_".</p>
<p>When you do an insert into a table that does not have an INTEGER PRIMARY
KEY column, or if the table does have an INTEGER PRIMARY KEY but the value
for that column is not specified in the VALUES clause of the insert, then
the key is automatically generated. You can find the value of the key
for the most recent INSERT statement using the
<b>sqlite_last_insert_rowid()</b> API function.</p>
<h2>Querying without using a callback function</h2>
<p>The <b>sqlite_get_table()</b> function is a wrapper around