using datediff, creating table
Hi all
I'm trying to calculate the number of years of a product when a new record is inserted.
That's what I tried
CREATE TABLE WaterMeter)
meterID VARCHAR (25) NOT NULL,
readingID VARCHAR (25) NOT NULL,
meterSerialNum VARCHAR (25) NOT NULL,
installationDate DATE NOT NULL,
noOfYears AS (DATEDIFF (YEAR, sysdate, installationDate));
CONSTRAINT watermeter_Pkey PRIMARY KEY (meterID).
Watermeter_Altkey of UNIQUE CONSTRAINT (meterSerialNum)
);
and the following error appeared.
Error in the command line column: 6:27
Error report:
SQL error: ORA-00904: "YEAR": invalid identifier
00904, 00000 - '% s: invalid identifier '.
* Cause:
* Action:
so, how can I go around to solve this issue?
Virtual column is... virtual. It is not stored in the table. Oracle calculates the value of virtual column every time that reference you it. This is why you cannot use functions such as SYSDATE in a virtual column expression. I understand the logic underlying your table, but this is done using views. Simply create the table without column of noOfYears, then
create or replace view WaterMeter_VW as select t.*, MONTHS_BETWEEN (sysdate, installationDate) / 12 WaterMeter noOfYears t;
SY.
Tags: Database
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CREATE using rpo_ex2-
SELECT * FROM (-)
WITH v1 as (-)
Select emp, option_group, | " -
substr (option_group, 1, 3)-
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of rpo_ex).
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When the rpo like ('% U0F %') then 'U0F '.
When the rpo like ('% U0H %') then 'U0H '.
When the rpo like ('% U1C %') then 'U1C;
When the rpo as ('UCH %") then"UCH -.
When the rpo as ('UCM % %') then 'UCM -.
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When the rpo as ("UFF %") then "UFF;
When the rpo like ('% UFU %') then 'UFU -.
When the rpo like ('% UG4% ') then 'UG4;
When the rpo like ('% UGU %') then 'UGU;
When the rpo like ('% UGX %') then 'UGX;
When the rpo like ('% YFU %') then 'YFU;
When the rpo like ('% UH7% ') then 'UH7;
When the rpo like ('% UHQ %') then 'UHQ -.
When the rpo as ("UHU %") then 'UHU '.
When the rpo like ('% UHV %') then 'UHV;
When the rpo like ('% UHW %') then 'UHW -.
When rpo love ('UI2% ") then"UI2. "
When rpo like ('% UI4% ') then 'UI4;
When the rpo like ('% UI6% ') then 'UI6 '.
When the rpo as ("UI7%") then "UI7;
When the rpo as ("UI8%") then "UI8;
When the rpo like ('% UL5% ') then 'UL5;
When the rpo like ('% UM7% ') then 'UM7;
When the rpo as ("UMT %") then "UMT" -.
When the rpo as ("UNM %") then "UNM;
When the rpo like ('% UPX %") then"UPX"
When the rpo like ('% US8% ') then 'US8 -.
When the rpo like ('% Mikiduta %') then 'KARIM ' -.
When the rpo like ('% UUJ %') then 'UUJ;
When the rpo as ('UUN %") then"UUN -.
When the rpo like ('% % PERFORMED') then 'PERFORMED '.
When the rpo like ('% UYE %') then 'UYE.
When the rpo as ("UYS %") then "UYS' end - RPO
v1 -.
where the rpo like ('%, ADG, %').
or the rpo like ('%, IO3, %')-
or the rpo like ('%, IO4, %')-
or the rpo like ('%, IO5, %')-
or the rpo like ('%, IO6, %')-
or the rpo like ('%, ROE, %')-
or rpo like ('% U0F %')-
or rpo like ('% U0H %')-
or the rpo like ('%, U1C, %')-
or the rpo like ('%, UCH, %')-
or the rpo like ('%, UCM, %')-
or the rpo like ('%, UF7, %')-
or the rpo like ('%, UFF, %')-
or the rpo like ('%, UFU, %')-
or the rpo like ('%, UG4, %')-
or the rpo like ('%, UGU, %')-
or the rpo like ('%, UGX, %')-
or the rpo like ('%, YFU, %')-
or rpo like ('% UH7, %')-
or the rpo like ('%, UHQ, %')-
or the rpo like ('%, UHU, %')-
or the rpo like ('%, UHV, %')-
or the rpo like ('%, UHW, %')-
or the rpo like ('%, UI2, %')-
or the rpo like ('%, UI4, %')-
or the rpo like ('% UI6% ')-
or the rpo like ('%, UI7, %')-
or the rpo like ('%, UI8, %')-
or the rpo like ('%, UL5, %')-
or the rpo like ('%, UM7, %')-
or the rpo like ('%, UMT, %')-
or the rpo like ('%, UNM, %')-
or the rpo like ('%, UPX, %')-
or the rpo like ('%, US8, %')-
or the rpo like ('%, KARIM, %')-
or the rpo like ('%, UUJ, %')-
or the rpo like ('%, UUN, %')-
or rpo like ('% PERFORMED, %')-
or the rpo like ('%, UYE, %')-
or the rpo like ('%, UYS, %')-
or the rpo like ('%, ROE, %'))
/
output
If you google you will see many examples, here is one:
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VARCHAR2 (2 BYTE) "INVENTORY_STATUS."
VARCHAR2 (2 BYTE) "ADJUSTMENT_REASON."
VARCHAR2 (1 BYTE) "ADJUSTMENT_SIGN."
"SET AMOUNT" VARCHAR2 (8 BYTE).
VARCHAR2 (4 BYTE) "ADJ_QTY_DECIMAL_VALUE".
)
EXTERNAL ORGANIZATION
(TYPE ORACLE_LOADER
DEFAULT DIRECTORY 'LOC_SOURCE_POS2RMS_INVADJ '.
ACCESS SETTINGS
(RECORDS DELIMITED BY NEWLINE
CHARACTERSET WE8MSWIN1252
STRING SIZES ARE IN BYTES
WHEN LOAD)
((1:5) = "TDETL")
)
BADFILE "XTB_INVADJ_FROM_POS.bad."
DISCARDFILE 'XTB_INVADJ_FROM_POS.dis '.
LOGFILE "XTB_INVADJ_FROM_POS.log".
FIELDS
LTRIM
(
"TRANSACTIONDATE" POSITION (30:43) DATE,
"LOCATION_TYPE" POSITION (44:45) TANK,
"LOCATION_VALUE" POSITION (46:49) TANK,
"ITEM_TYPE" POSITION (50:52) TANK,
"ITEM_VALUE" POSITION (53:65) TANK,
"UPC_SUPPLEMENT" POSITION (66:70) TANK,
"INVENTORY_STATUS" POSITION (71:72) TANK,
"ADJUSTMENT_REASON" POSITION (73:74) TANK,
"ADJUSTMENT_SIGN" POSITION (75) TANK,
"SET AMOUNT" POSITION (76:83) TANK,.
CHAR POSITION (84:87) "ADJ_QTY_DECIMAL_VALUE".
)
)
LOCATION
("inv.txt"
)
)
REJECT LIMIT UNLIMITED;
If you see my conetent file that it will be as below.
TDETL00000000020000000000000120100127181611ST6009SKU75001056 0023-000000400000
I want to validate the chracters total if this line is to have more or less of 87 87 he must raise the error.
You can use a column in the external table that contains all characters and a view that selects in the outer table, limiting the lines based on the length of the column that contains all characters, such as shown below. You can create a separate view for those! = 87 if you want a list of releases.
Scott@orcl12c > c:\my_oracle_files\inv.txt TYPE of HOST
TDETL00000000020000000000000120100127181611ST6009SKU75001056 0023-00000040086
TDETL00000000020000000000000120100127181611ST6009SKU75001056 0023-000000400087
TDETL00000000020000000000000120100127181611ST6009SKU75001056 0023-0000004000088
Scott@orcl12c > CREATE or REPLACE DIRECTORY LOC_SOURCE_POS2RMS_INVADJ AS 'c:\my_oracle_files '.
2.
Created directory.
Scott@orcl12c > external_table CREATE TABLE
2 ("TRANSACTIONDATE" VARCHAR2 (14 BYTE),
VARCHAR2 (2 BYTE) 3 'LOCATION_TYPE. "
VARCHAR2 (4 BYTE) 4 "LOCATION_VALUE."
VARCHAR2 (3 BYTE) 5 'ITEM_TYPE. "
VARCHAR2 (13 BYTE) 6 "ITEM_VALUE."
VARCHAR2 (5 BYTE) 7 "UPC_SUPPLEMENT."
VARCHAR2 (2 BYTE) 8 "INVENTORY_STATUS."
VARCHAR2 (2 BYTE) 9 "ADJUSTMENT_REASON."
10 'ADJUSTMENT_SIGN' VARCHAR2 (1 BYTE),
11 "SET AMOUNT" VARCHAR2 (8 BYTE).
VARCHAR2 (4 BYTE) 12 "ADJ_QTY_DECIMAL_VALUE."
13 total_characters VARCHAR2 (255)
14)
15 EXTERNAL ORGANIZATION
16 (TYPE ORACLE_LOADER
17 DEFAULT DIRECTORY 'LOC_SOURCE_POS2RMS_INVADJ '.
18 ACCESS SETTINGS
19 (RECORDS DELIMITED BY NEWLINE
CHARACTERSET 20 WE8MSWIN1252
21 STRING SIZES ARE IN BYTES
22 LOAD WHEN)
23 ((1:5) = "TDETL")
24)
25 BADFILE "XTB_INVADJ_FROM_POS.bad."
26 DISCARDFILE 'XTB_INVADJ_FROM_POS.dis '.
27 LOGFILE "XTB_INVADJ_FROM_POS.log".
28 FIELDS
LTRIM 29
30 (
31 "TRANSACTIONDATE" POSITION (30:43) DATE,
32 'LOCATION_TYPE"POSITION (44:45) TANK,
33 "LOCATION_VALUE" POSITION (46:49) TANK,
34 'ITEM_TYPE"POSITION (50:52) TANK,
35 'ITEM_VALUE' POSITION (53:65) TANK,
36 "UPC_SUPPLEMENT" POSITION (66:70) TANK,
37 "INVENTORY_STATUS" POSITION (71:72) TANK,
38 "ADJUSTMENT_REASON" POSITION (73:74) TANK,
39 'ADJUSTMENT_SIGN' POSITION (75) TANK,
40 "SET AMOUNT" POSITION (76:83) TANK,.
41 'ADJ_QTY_DECIMAL_VALUE' POSITION (84:87) TANK,
42 total_characters POSITION(1:255) TANK
43 )
44 )
LOCATION 45
46 ("inv.txt"
47 )
48)
RELEASE 49 UNLIMITED LIMIT
50.
Table created.
Scott@orcl12c > SELECT * from external_table
2.
TRANSACTIONDAT LO LOCA ITE ITEM_VALUE UPC_S IN AD AN ADJ_ ADJUSTME
-------------- -- ---- --- ------------- ----- -- -- - -------- ----
TOTAL_CHARACTERS
--------------------------------------------------------------------------------
20100127181611 ST 6009 SKU 75001056 00 23 - 00000040 086
TDETL00000000020000000000000120100127181611ST6009SKU75001056 0023-00000
040086
20100127181611 ST 6009 SKU 75001056 00 23 - 00000040 0087
TDETL00000000020000000000000120100127181611ST6009SKU75001056 0023-00000
0400087
20100127181611 ST 6009 SKU 75001056 00 23 - 00000040 0008
TDETL00000000020000000000000120100127181611ST6009SKU75001056 0023-00000
04000088
3 selected lines.
Scott@orcl12c > external_table FROM SELECT LENGTH (total_characters)
2.
LENGTH (TOTAL_CHARACTERS)
------------------------
86
87
88
3 selected lines.
Scott@orcl12c > xtb_invadj_from_pos VIEW to CREATE or REPLACE AS
2. SELECT "TRANSACTIONDATE"
3 "LOCATION_TYPE."
4 'LOCATION_VALUE. "
5 "ITEM_TYPE."
6 "ITEM_VALUE."
7 "UPC_SUPPLEMENT"
8 "INVENTORY_STATUS"
9 "ADJUSTMENT_REASON."
10 "ADJUSTMENT_SIGN."
11 "QUANTITY ADJUSTMENT."
12 'ADJ_QTY_DECIMAL_VALUE '.
13 FROM external_table
14 WHERE the LENGTH (total_characters) = 87
15.
Created view.
Scott@orcl12c > SELECT * FROM xtb_invadj_from_pos
2.
TRANSACTIONDAT LO LOCA ITE ITEM_VALUE UPC_S IN AD AN ADJ_ ADJUSTME
-------------- -- ---- --- ------------- ----- -- -- - -------- ----
20100127181611 ST 6009 SKU 75001056 00 23 - 00000040 0087
1 selected line.
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