The Gurus Guide to SQL Server Stored Procedures, XML, and HTML [Electronic resources] نسخه متنی

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The Gurus Guide to SQL Server Stored Procedures, XML, and HTML [Electronic resources] - نسخه متنی

Ken Henderson

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Meta-data




The OBJECTPROPERTY() meta-data function supports a number of properties that relate to views. Table 9-1 summarizes them.




































































Table 9-1. View-Related OBJECTPROPERTY() Values

Property
Function
ExecIsAnsiNullsOn
Indicates whether ANSI_NULLS was on when the view was created or altered
ExecIsQuotedIdentOn
Indicates whether QUOTED_IDENTIFIER was on when the view was created or altered
HasAfterTrigger
Indicates whether the view has an AFTER trigger
HasInsertTrigger
Indicates whether the view has an INSERT trigger
HasInsteadOfTrigger
Indicates whether the view has an INSTEAD OF trigger
HasUpdateTrigger
Indicates whether the view has an UPDATE trigger
IsAnsiNullsOn
Indicates whether ANSI_NULLS was on when the view was created or altered (same as ExecIsAnsiNullsOn)
IsDeterministic
Indicates whether the view consistently returns the same results given the same criteria
IsExecuted
Returns 1 for views and other executable objects: triggers, stored procedures, UDFs, and tables with computed columns
IsIndexable
Indicates that an index can be created over the view
IsIndexed
Indicates that the view is indexed
IsQuotedIdentOn
Indicates whether QUOTED_IDENTIFIER was on when the view was created or altered (same as ExecIsQuotedIdentOn)
IsSchemaBound
Indicates whether the view is schema bound
IsView
Returns 1 for views



Listing the Source Code for a View




Unless a view was created using the WITH ENCRYPTION option, you can use sp_helptext to retrieve its source code. You can also inspect and modify view source code in Enterprise Manager, as well as many SQL-DMO-enabled administration tools. Here's some sample code that returns the source of the syslogins system view (Listing 9-1):



Listing 9-1 sp_helptext can list a view's source code.



USE master
EXEC sp_helptext syslogins
Text
-----------------------------------------------------------------
CREATE VIEW syslogins AS SELECT
sid = convert(varbinary(85), sid),
status = convert(smallint, 8 +
CASE WHEN (xstatus & 2)=0 THEN 1 ELSE 2 END),
createdate = convert(datetime, xdate1),
updatedate = convert(datetime, xdate2),
accdate = convert(datetime, xdate1),
totcpu = convert(int, 0),
totio = convert(int, 0),
spacelimit = convert(int, 0),
timelimit = convert(int, 0),
resultlimit = convert(int, 0),
name = convert(sysname, name),
dbname = convert(sysname, db_name(dbid)),
password = convert(sysname, password),
language = convert(sysname, language),
denylogin = convert(int, CASE WHEN (xstatus&1)=
1 THEN 1 ELSE 0 END),
hasaccess = convert(int, CASE WHEN (xstatus&2)=
2 THEN 1 ELSE 0 END),
isntname = convert(int, CASE WHEN (xstatus&4)=
4 THEN 1 ELSE 0 END),
isntgroup = convert(int, CASE WHEN (xstatus&12)=
4 THEN 1 ELSE 0 END),
isntuser = convert(int, CASE WHEN (xstatus&12)=
12 THEN 1 ELSE 0 END),
sysadmin = convert(int, CASE WHEN (xstatus&16)=
16 THEN 1 ELSE 0 END),
securityadmin = convert(int, CASE WHEN (xstatus&32)=
32 THEN 1 ELSE 0 END),
serveradmin = convert(int, CASE WHEN (xstatus&64)=
64 THEN 1 ELSE 0 END),
setupadmin = convert(int, CASE WHEN (xstatus&128)=
128 THEN 1 ELSE 0 END),
processadmin = convert(int, CASE WHEN (xstatus&256)=
256 THEN 1 ELSE 0 END),
diskadmin = convert(int, CASE WHEN (xstatus&512)=
512 THEN 1 ELSE 0 END),
dbcreator = convert(int, CASE WHEN (xstatus&1024)=
1024 THEN 1 ELSE 0 END),
bulkadmin = convert(int, CASE WHEN (xstatus&4096)=
4096 THEN 1 ELSE 0 END),
loginname = convert(sysname, name)
FROM sysxlogins WHERE srvid IS NULL

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