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Comment:In the documentation, amplify the fact that encodings cannot be changed on a database that already exists. Ticket #1277. (CVS 2503)
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SHA1:4704f3a19af73261ec03c0192c74a0416aeba794
User & Date: drh 2005-06-07 20:07:24
Context
2005-06-07
22:22
Changes to support linking without a parser and without a disk I/O interface. (CVS 2504) check-in: 62a7353d user: drh tags: trunk
20:07
In the documentation, amplify the fact that encodings cannot be changed on a database that already exists. Ticket #1277. (CVS 2503) check-in: 4704f3a1 user: drh tags: trunk
09:21
Remove SSE vacuum hook. (CVS 2502) check-in: 59960a59 user: danielk1977 tags: trunk
Changes
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Changes to www/pragma.tcl.

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#
# Run this Tcl script to generate the pragma.html file.
#
set rcsid {$Id: pragma.tcl,v 1.14 2005/05/16 02:13:18 danielk1977 Exp $}
source common.tcl
header {Pragma statements supported by SQLite}

proc Section {name {label {}}} {
  puts "\n<hr />"
  if {$label!=""} {
    puts "<a name=\"$label\"></a>"
................................................................................

<a name="pragma_encoding"></a>
<li><p><b>PRAGMA encoding;
       <br>PRAGMA encoding = "UTF-8";
       <br>PRAGMA encoding = "UTF-16";
       <br>PRAGMA encoding = "UTF-16le";
       <br>PRAGMA encoding = "UTF-16be";</b></p>
    <p>In it's first form, if the main database has already been
    created, then this pragma returns the text encoding used by the
    main database, one of "UTF-8", "UTF-16le" (little-endian UTF-16
    encoding) or "UTF-16be" (big-endian UTF-16 encoding).  If the main
    database has not already been created, then the value returned is the
    text encoding that will be used to create the main database, if 
    it is created by this session.</p>
    <p>The second and subsequent forms of this pragma are only useful if
    the main database has not already been created. In this case the 
    pragma sets the encoding that the main database will be created with if
    it is created by this session. The string "UTF-16" is interpreted
    as "UTF-16 encoding using native machine byte-ordering".</p>





    <p>Databases created by the ATTACH command always use the same encoding
    as the main database.</p>
</li>

<a name="pragma_full_column_names"></a>
<li><p><b>PRAGMA full_column_names;
       <br>PRAGMA full_column_names = </b><i>0 | 1</i><b>;</b></p>



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#
# Run this Tcl script to generate the pragma.html file.
#
set rcsid {$Id: pragma.tcl,v 1.15 2005/06/07 20:07:24 drh Exp $}
source common.tcl
header {Pragma statements supported by SQLite}

proc Section {name {label {}}} {
  puts "\n<hr />"
  if {$label!=""} {
    puts "<a name=\"$label\"></a>"
................................................................................

<a name="pragma_encoding"></a>
<li><p><b>PRAGMA encoding;
       <br>PRAGMA encoding = "UTF-8";
       <br>PRAGMA encoding = "UTF-16";
       <br>PRAGMA encoding = "UTF-16le";
       <br>PRAGMA encoding = "UTF-16be";</b></p>
    <p>In first form, if the main database has already been
    created, then this pragma returns the text encoding used by the
    main database, one of "UTF-8", "UTF-16le" (little-endian UTF-16
    encoding) or "UTF-16be" (big-endian UTF-16 encoding).  If the main
    database has not already been created, then the value returned is the
    text encoding that will be used to create the main database, if 
    it is created by this session.</p>
    <p>The second and subsequent forms of this pragma are only useful if
    the main database has not already been created. In this case the 
    pragma sets the encoding that the main database will be created with if
    it is created by this session. The string "UTF-16" is interpreted
    as "UTF-16 encoding using native machine byte-ordering".  If the second
    and subsequent forms are used after the database file has already
    been created, they have no effect and are silently ignored.</p>

    <p>Once an encoding has been set for a database, it cannot be changed.</p>

    <p>Databases created by the ATTACH command always use the same encoding
    as the main database.</p>
</li>

<a name="pragma_full_column_names"></a>
<li><p><b>PRAGMA full_column_names;
       <br>PRAGMA full_column_names = </b><i>0 | 1</i><b>;</b></p>