-C Version\s1.0.15\s(CVS\s488)
-D 2000-10-23T13:20:00
+C Comment\schanges\sonly\s(CVS\s165)
+D 2000-11-28T20:46:39
F COPYRIGHT 74a8a6531a42e124df07ab5599aad63870fa0bd4
F Makefile.in 0b1fdafa55e1bf4d3a4f5213544130e66ef32052
F README 51f6a4e7408b34afa5bc1c0485f61b6a4efb6958
F www/arch.fig 4f246003b7da23bd63b8b0af0618afb4ee3055c8
F www/arch.png 8dae0766d42ed3de9ed013c1341a5792bcf633e6
F www/arch.tcl a40380c1fe0080c43e6cc5c20ed70731511b06be
-F www/c_interface.tcl 5e15e610397b50a9c2a9b2d1d96ec9c846638c07
+F www/c_interface.tcl 11be2d5826eb7d6efd629751d3b483c1ed78ba14
F www/changes.tcl c31acb39bd4e961e966ac05347a3bbffa56c576d
F www/crosscompile.tcl bee79c34f6c3f162ec1c6f5294e79f73651d27ee
F www/fileformat.tcl cfb7fba80b7275555281ba2f256c00734bcdd1c9
F www/opcode.tcl cb3a1abf8b7b9be9f3a228d097d6bf8b742c2b6f
F www/sqlite.tcl cb0d23d8f061a80543928755ec7775da6e4f362f
F www/tclsqlite.tcl 06f81c401f79a04f2c5ebfb97e7c176225c0aef2
-F www/vdbe.tcl bcbfc33bcdd0ebad95eab31286adb9e1bc289520
-P 356cdd64860b714f52529159fada799dca7bb1c0
-R 74743bda8c8d42a04097be9627f279df
+F www/vdbe.tcl 0c8aaa529dd216ccbf7daaabd80985e413d5f9ad
+P d2ad3d2b4ee868621fb1155c64216536d576e456
+R 83fb4b0a2d996778108e66a5fdc62b84
U drh
-Z dc6feacf6ee70c341a007315b3df6654
+Z ab74421a3e62e0f3d766c4c0780c1caf
#
# Run this Tcl script to generate the sqlite.html file.
#
-set rcsid {$Id: c_interface.tcl,v 1.12 2000/10/23 13:16:33 drh Exp $}
+set rcsid {$Id: c_interface.tcl,v 1.13 2000/11/28 20:46:39 drh Exp $}
puts {<html>
<head>
</p>
<p>Consider an example. Suppose you are trying to insert a string
-values into a database table where the string value was obtained from
+value into a database table where the string value was obtained from
user input. Suppose the string to be inserted is stored in a variable
named zString. The code to do the insertion might look like this:</p>
#
# Run this Tcl script to generate the vdbe.html file.
#
-set rcsid {$Id: vdbe.tcl,v 1.5 2000/07/30 20:04:43 drh Exp $}
+set rcsid {$Id: vdbe.tcl,v 1.6 2000/11/28 20:46:41 drh Exp $}
puts {<html>
<head>
preprocessor macro, then
there is a special SQL comment that will cause the
the VDBE to traces the execution of programs.
-Though this features was originally intended for testing
+Though this feature was originally intended for testing
and debugging, it might also be useful in learning about
how the VDBE operates.
Use the "<tt>--vdbe-trace-on--</tt>" comment to
<p>The SQLite library supplies the VDBE with a pointer to the callback function
and the <b>pUserData</b> pointer. (Both the callback and the user data were
-originally passed in as argument to the <b>sqlite_exec()</b> API function.)
+originally passed in as arguments to the <b>sqlite_exec()</b> API function.)
The job of the VDBE is to
come up with values for <b>nColumn</b>, <b>azData[]</b>,
and <b>azColumnName[]</b>.
take a long time on a big table. To speed things up, SQLite
can use an index.</p>
-<p>An GDBM file associates a key with some data. For a SQLite
+<p>A GDBM file associates a key with some data. For a SQLite
table, the GDBM file is set up so that the key is a integer
and the data is the information for one row of the table.
Indices in SQLite reverse this arrangement. The GDBM key
the key if one did not previously exist. Once the bucket is in
focus, the memory locations of the bucket are used to accumulate
the values of the various aggregate functions. After the query
-loop terminates, the each bucket is visited once to generate a
+loop terminates, each bucket is visited once to generate a
single row of the results.</p>
<p>An example will help to clarify this concept. Consider the
All this code does is make an entry in the temporary table for each
row of the examp2 table. The key for each temporary table entry
is the "three" column of examp2 and the data
-entries is an empty string since it is never used.</p>
+is an empty string since it is never used.</p>
<p>The outer SELECT is implemented by instructions 8 through 19. In
particular, the WHERE clause containing the IN operator is implemented
projects / thirdparty / sqlite.git / commitdiff
