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Overview
Comment:Documented SQL fns IFNULL() and NULLIF(). (CVS 1015)
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SHA1: 190252fee0a86eb6f8c24a2402e36482e3bd514c
User & Date: jplyon 2003-06-08 08:36:34.000
Context
2003-06-09
11:53
Remove redundant "return" statement from btree_rb.c. (CVS 1016) (check-in: 373d077173 user: drh tags: trunk)
2003-06-08
08:36
Documented SQL fns IFNULL() and NULLIF(). (CVS 1015) (check-in: 190252fee0 user: jplyon tags: trunk)
2003-06-07
11:33
Use sqliteOsFileExists() in the debugging hook in vdbe.c, instead of access(). Ticket #341. (CVS 1014) (check-in: 7d3405b95b user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to www/lang.tcl. 
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#
# Run this Tcl script to generate the sqlite.html file.
#
set rcsid {$Id: lang.tcl,v 1.60 2003/06/07 08:56:09 jplyon Exp $}

puts {<html>
<head>
  <title>Query Language Understood By SQLite</title>
</head>
<body bgcolor=white>
<h1 align=center>




|








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#
# Run this Tcl script to generate the sqlite.html file.
#
set rcsid {$Id: lang.tcl,v 1.61 2003/06/08 08:36:34 jplyon Exp $}

puts {<html>
<head>
  <title>Query Language Understood By SQLite</title>
</head>
<body bgcolor=white>
<h1 align=center>
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<td valign="top" align="right" width=120>abs(<i>X</i>)</td>
<td valign="top">Return the absolute value of argument <i>X</i>.</td>
</tr>

<tr>
<td valign="top" align="right">coalesce(<i>X</i>,<i>Y</i>,...)</td>
<td valign="top">Return a copy of the first non-NULL argument.  If
all arguments are NULL then NULL is returned.</td>

</tr>

<tr>
<a name="globFunc"></a>
<td valign="top" align="right">glob(<i>X</i>,<i>Y</i>)</td>
<td valign="top">This function is used to implement the
"<b>Y GLOB X</b>" syntax of SQLite.  The
<a href="c_interface.html#cfunc">sqlite_create_function()</a> 
interface can
be used to override this function and thereby change the operation
of the <a href="#glob">GLOB</a> operator.</td>
</tr>








<tr>
<td valign="top" align="right">last_insert_rowid()</td>
<td valign="top">Return the ROWID of the last row insert from this
connection to the database.  This is the same value that would be returned
from the <b>sqlite_last_insert_rowid()</b> API function.</td>
</tr>









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<td valign="top" align="right" width=120>abs(<i>X</i>)</td>
<td valign="top">Return the absolute value of argument <i>X</i>.</td>
</tr>

<tr>
<td valign="top" align="right">coalesce(<i>X</i>,<i>Y</i>,...)</td>
<td valign="top">Return a copy of the first non-NULL argument.  If
all arguments are NULL then NULL is returned.  There must be at least 
2 arguments.</td>
</tr>

<tr>
<a name="globFunc"></a>
<td valign="top" align="right">glob(<i>X</i>,<i>Y</i>)</td>
<td valign="top">This function is used to implement the
"<b>Y GLOB X</b>" syntax of SQLite.  The
<a href="c_interface.html#cfunc">sqlite_create_function()</a> 
interface can
be used to override this function and thereby change the operation
of the <a href="#glob">GLOB</a> operator.</td>
</tr>

<tr>
<td valign="top" align="right">ifnull(<i>X</i>,<i>Y</i>)</td>
<td valign="top">Return a copy of the first non-NULL argument.  If
both arguments are NULL then NULL is returned. This behaves the same as 
<b>coalesce()</b> above.</td>
</tr>

<tr>
<td valign="top" align="right">last_insert_rowid()</td>
<td valign="top">Return the ROWID of the last row insert from this
connection to the database.  This is the same value that would be returned
from the <b>sqlite_last_insert_rowid()</b> API function.</td>
</tr>
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<td valign="top">Return the argument with the minimum value.  Arguments
may be strings in addition to numbers.  The mminimum value is determined
by the usual sort order.  Note that <b>min()</b> is a simple function when
it has 2 or more arguments but converts to an aggregate function if given
only a single argument.</td>
</tr>







<tr>
<td valign="top" align="right">random(*)</td>
<td valign="top">Return a random integer between -2147483648 and
+2147483647.</td>
</tr>

<tr>








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<td valign="top">Return the argument with the minimum value.  Arguments
may be strings in addition to numbers.  The mminimum value is determined
by the usual sort order.  Note that <b>min()</b> is a simple function when
it has 2 or more arguments but converts to an aggregate function if given
only a single argument.</td>
</tr>

<tr>
<td valign="top" align="right">nullif(<i>X</i>,<i>Y</i>)</td>
<td valign="top">Return the first argument if the arguments are different, 
otherwise return NULL.</td>
</tr>

<tr>
<td valign="top" align="right">random(*)</td>
<td valign="top">Return a random integer between -2147483648 and
+2147483647.</td>
</tr>

<tr>
︙︙