它可以创建子（field.name，1，最大长度）的选项视图，并使用PUB2.viewname代替pub.tablename
DROP VIEW PUB2."accounts";
CREATE VIEW PUB2."accounts" (
"ACC-TYPE",
"ACCOUNT-NAME",
ANALITIC,
ARCH,
COUNT1,
CURRENCY,
PLAN,
QUANTITY,
"RID-ANOBJECT",
"RID-APP",
TRANSIT)
AS select "acc-type",
SUBSTRING("account-name", 1, 130),
"analitic",
"arch",
"count1",
"currency",
"plan",
"quantity",
"rid-anobject",
"rid-app",
"transit"
FROM PUB."accounts";
COMMIT;
使用sqlexp自动创建： sqlexp帐户-H本地主机-S '+分贝端口+' -user sysprogress -password sysprogress -infile recreateSQLviews.sql -outfile recreateSQLviews.log
这里是代码：
def var num-port as integer.
for first _Servers where _Servers._Server-Type = "Login" no-lock:
num-port = _Servers._Server-PortNum.
end.
if num-port < 0 then num-port = num-port + 65536.
if num-port = 0 then do:
message "Define -S parameter for Database" view-as alert-box.
RETURN.
end.
message num-port.
/* ttSQLWidth table: SQL WIDTH for all tables */
def var execstr as char.
def var rez-str as char.
def var db-port as char. /* -S port */
db-port = STRING(num-port).
DEFINE TEMP-TABLE ttSQLWidth NO-UNDO
FIELD tableName AS CHARACTER
FIELD tableNum AS INTEGER
FIELD fieldName AS CHARACTER
FIELD sqlWidth AS INTEGER
FIELD requireFix AS LOGICAL INIT FALSE
FIELD actualWidth AS INTEGER
FIELD newWidth AS INTEGER
INDEX tableNum tableNum
INDEX tableName tableName.
FOR EACH _File NO-LOCK WHERE _Tbl-Type = "T":
FOR EACH _Field OF _File WHERE _Field._Data-type = "character":
if _field._extent > 0 then next.
CREATE ttSQLWidth.
ASSIGN tableName = _File._File-name
tableNum = _File._File-num
fieldName = _Field._Field-name
sqlWidth = _Field._Width.
RELEASE ttSQLWidth.
END. /* FOR EACH _Field */
END. /* FOR EACH _File */
DEFINE VARIABLE bTab AS HANDLE NO-UNDO.
DEFINE VARIABLE hQuery AS HANDLE NO-UNDO.
DEFINE VARIABLE queryString AS CHARACTER NO-UNDO.
FOR EACH ttSQLWidth:
CREATE BUFFER bTab FOR TABLE tableName.
CREATE QUERY hQuery.
hQuery:ADD-BUFFER(bTab).
message tablename.
queryString = "FOR EACH " + tableName + " WHERE LENGTH(" + fieldName + ") >= " + STRING(sqlWidth) + " BY LENGTH(" + fieldName + ") DESC".
hQuery:QUERY-PREPARE(queryString).
hQuery:QUERY-OPEN().
IF hQuery:GET-NEXT() THEN DO:
ASSIGN actualWidth = LENGTH(bTab:BUFFER-FIELD(fieldName):BUFFER-VALUE)
requireFix = TRUE.
END. /* IF .. THEN DO */
hQuery:QUERY-CLOSE.
DELETE OBJECT hQuery.
bTab:BUFFER-RELEASE().
DELETE OBJECT bTab.
END. /* FOR EACH ttSQLWidth */
def var add-pr as integer initial 10. /* % from max */
def var maxWidth as integer initial 249. /* maxwidth */
FOR EACH ttSQLWidth WHERE ttSQLWidth.requireFix = TRUE:
ttSQLWidth.newWidth = TRUNCATE ((ttSQLWidth.actualWidth + add-pr)/add-pr, 0) * add-pr.
ttSQLWidth.newWidth = INTEGER(ttSQLWidth.newWidth).
if ttSQLWidth.newWidth > maxWidth then ttSQLWidth.newWidth = maxWidth.
END.
/* sql script generation */
OUTPUT TO value("recreateSQLviews.sql").
def var lst-field as char.
FOR EACH ttSQLWidth WHERE BREAK BY ttSQLWidth.tableName:
IF FIRST-OF(ttSQLWidth.tableName)
THEN run MakeSQLViews(ttSQLWidth.tableName).
END.
OUTPUT CLOSE.
/* sql script execution */
execstr = 'sqlexp account -H localhost -S ' + db-port + ' -user sysprogress -password sysprogress -infile recreateSQLviews.sql -outfile recreateSQLviews.log'.
input through value(execstr).
repeat:
IMPORT UNFORMAT rez-str.
message rez-str.
end.
INPUT CLOSE.
RETURN.
PROCEDURE MakeSQLViews:
define input parameter tableName as character.
def var str_tmp as char.
def var str_tmp1 as char.
def var str as char initial "count,sum,double,row,date,level,area,number,primary".
def var fieldName as char.
def var fieldName1 as char.
FOR EACH _file WHERE _file._file-name = tableName AND
_file._file-num GT 0 AND _file._file-num LT 32000 NO-LOCK:
fieldName = "".
FOR EACH _Field OF _File NO-LOCK:
str_tmp = '"' + _Field._Field-name + '"'.
FOR FIRST ttSQLWidth where ttSQLWidth.tableName = _file._file-name and
ttSQLWidth.fieldName = _Field._Field-name and
ttSQLWidth.requireFix = TRUE:
str_tmp = 'SUBSTRING("' + _Field._Field-name + '", 1, ' + STRING(ttSQLWidth.newWidth) + ')'.
END.
fieldName = fieldName + (IF(fieldName = "") THEN ("") ELSE ("," + chr(10) + chr(9))) + str_tmp.
str_tmp1 = (IF (INDEX (_Field._Field-name, "-") = 0)
THEN (_Field._Field-name)
ELSE ('"' + _Field._Field-name + '"')).
if LOOKUP (_Field._Field-name, str, ",") > 0 then str_tmp1 = '"' + _Field._Field-name + '"'.
fieldName1 = fieldName1 + (IF(fieldName1 = "") THEN ("") ELSE ("," + chr(10) + chr(9))) + UPPER(str_tmp1).
END. /* FOR EACH _Field */
PUT UNFORMATTED 'DROP VIEW PUB2."' + _file._file-name + '";' SKIP.
PUT UNFORMATTED 'CREATE VIEW PUB2."' + _file._file-name + '" (' + chr(10) chr(9) + fieldName1 + ') ' + chr(10) +
'AS select ' + fieldName + chr(10) +
'FROM PUB."' + _file._file-name + '";' SKIP.
PUT UNFORMATTED 'COMMIT;' SKIP(1).
END.
END.
如果你担心搞乱开发数据库，最好的办法是用旧数据库的模式和一些数据创建一个测试数据库，做一个“以防万一”的备份副本，然后使用它的模式和看看有什么作用。 – 2012-08-17 01:13:08
“区域”是表格和/或索引的集合。它有点像甲骨文的“表空间”。 – 2012-08-17 01:54:42
@tombascom这是很好的知道未来的参考。我不是一个非常有经验的开发人员，绝对不是一个数据库人，所以请原谅我的无知。 – 2012-08-17 02:28:42