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Chapter 2: ColdFusion Tags
cftransaction
Description
For enterprise database management systems that support transaction processing, instructs the
database management system to treat multiple database operations as a single transaction.
Provides database commit and rollback processing. See the documentation for your database
management system to determine whether it supports SQL transaction processing.
Category
Database manipulation tags
Syntax
<cftransaction
action = "begin" or "commit" or "rollback"
isolation = "read_uncommitted" or "read_committed" or
"repeatable_read" >
</cftransaction>
See also
cfinsert
,
cfprocparam
,
cfprocresult
,
cfquery
,
cfqueryparam
,
cfstoredproc
,
cfupdate
;
“Commits, rollbacks, and transactions” in Chapter 19, “Introduction to Databases and SQL,” in
ColdFusion MX Developer’s Guide
Attributes
Attribute
Req/Opt Default Description
action
Optional
begin
•
begin: the start of the block of code to execute.
•
commit: commits a pending transaction.
•
rollback: rolls back a pending transaction.
isolation
Optional
ODBC
lock
type:
•
read_uncommitted: reads without regard for other transactions
that are taking place. Sometimes called a ‘dirty read’ because
data that is read can be in a transitional state and therefore not
accurate.
•
read_committed: uses shared locks to assure that no other
transaction modifies rows that this transaction uses.
•
repeatable_read: same as read_committed, except that rows in
the recordset are exclusively locked until the transaction
completes. Due to high overhead, Macromedia does not
recommend this isolation level for normal database access.
•
serializable: places an exclusive lock on every data table in use
for the duration of the transaction. Causes access to the
database to be single-threaded and is therefore not
recommended for normal database access.
Содержание COLFUSION MX 7-CFML
Страница 1: ...COLDFUSION MX7 CFML Reference...
Страница 20: ...20 Chapter 1 Reserved Words and Variables...
Страница 50: ...50 Chapter 2 ColdFusion Tags cfelse br Searching cfif cfloop cfif...
Страница 101: ...cfdefaultcase 101 cfdefaultcase cfswitch cfoutput Your grade is grade cfoutput...
Страница 115: ...cfdocumentsection 115 cfdocumentsection cfoutput cfdocument...
Страница 311: ...cfNTauthenticate 311 Please Try again H2 cfif cfoutput cfinclude template loginform cfm cfabort cfif cfif cflogin...
Страница 411: ...cftable 411 cftable body html...
Страница 515: ...Chr 515 maxlength 5 p input type Submit name input type RESET cfform...
Страница 605: ...GetEncoding 605 WriteOutput The encoding is theEncoding cfscript cfif...
Страница 629: ...GetProfileString 629 tr td input type Submit name Submit value Submit td td td tr table form...
Страница 655: ...IIf 655 cfoutput IIf Hour Now GTE 12 DE It is afternoon or evening DE It is morning cfoutput b...
Страница 664: ...664 Chapter 3 ColdFusion Functions cfelse h3 Conversion error h3 cfif...
Страница 687: ...IsStruct 687 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 693: ...IsWDDX 693 struct data wddxPacket hr xmp cfoutput packet xmp IsWDDX returns IsWDDX packet br cfoutput...
Страница 751: ...LSDateFormat 751 hr noshade cfoutput cfloop...
Страница 861: ...StructFind 861 cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 869: ...StructIsEmpty 869 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 903: ...Val 903 value Is the beginning numeric name form...
Страница 932: ...932 Chapter 3 ColdFusion Functions...
Страница 944: ...944 Chapter 4 ColdFusion MX Flash Form Style Reference...
Страница 962: ...962 Chapter 5 Application CFC Reference...
Страница 1008: ...1008 Chapter 6 ColdFusion MX Event Gateway Reference cfset retValue Reason reason cfreturn retValue cffunction...
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