From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sat, 5 Nov 2005 07:31:27 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: rel_0_1_0~368
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a4c4c83d033b046bd8fa7cc7a5a707f94af34a24;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

---

diff --git a/doc/build/content/sqlconstruction.myt b/doc/build/content/sqlconstruction.myt
index b5b8ebc15f..e00a6c9136 100644
--- a/doc/build/content/sqlconstruction.myt
+++ b/doc/build/content/sqlconstruction.myt
@@ -204,6 +204,18 @@ AND users.password = :users_password
 {'users_user_name': 'jack', 'users_password': 'dog'}
 </&>
 
+                # NOT keyword
+                <&formatting.myt:poplink&>c = users.select(not_(
+                        or_(users.c.user_name=='jack', users.c.password=='dog')
+                    )).execute()  
+<&|formatting.myt:codepopper, link="sql" &>
+SELECT users.user_id, users.user_name, users.password 
+FROM users 
+WHERE NOT (users.user_name = :users_user_name 
+    OR users.password = :users_password)
+{'users_user_name': 'jack', 'users_password': 'dog'}
+</&>
+                
                 # IN clause
 <&formatting.myt:poplink&>c = users.select(users.c.user_name.in_('jack', 'ed', 'fred')).execute()  
 <&|formatting.myt:codepopper, link="sql" &>
@@ -603,7 +615,8 @@ select user_name from users
 {}
 </&>            
             
-            # a straight text query like the one above is also available directly off the engine:
+            # a straight text query like the one above is also available directly off the engine
+            # (though youre going to have to drop down to the DBAPI's style of bind params)
             <&formatting.myt:poplink&>db.execute(
                     "select user_name from users where user_id=:user_id", 
                     {'user_id':7}).execute()
@@ -782,5 +795,15 @@ WHERE users.user_name = :users_user_name AND keywords.name IN ('jack', 'foo')
         </&>
     </&>
     <&|doclib.myt:item, name="delete", description="Deletes" &>
+    <p>A delete is formulated like an update, except theres no values:</p>
+    <&|formatting.myt:code &>
+        users.delete(users.c.user_id==7).execute()
+        users.delete(users.c.user_name.like(bindparam('name'))).execute(
+                {'name':'%Jack%'},
+                {'name':'%Ed%'},
+                {'name':'%Jane%'},
+            )
+        users.delete(exists())
+    </&>
     </&>
 </&>
\ No newline at end of file