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Q10804 - HOWTO: Query Information from Hach WIMS (ORACLE Examples)

WIMS supports the ability to run SQL Statements (i.e. Select queries, update statements) using the SQL Console.  To use the SQL Console you must be a Super User (or a Manager with the "Allowed to run SQL Console (if Manager):" User Setting checked). 

To use the SQL Console:

Go to System Setup, Admin Console, Action Scripts Tab and click execute on the following line: Execute custom SQL commands against the current database. Experienced users only!

You will be presented with a window that allows you to execute SQL Statements directly against the database. 

EXAMPLES:

1. Update using the REPLACE function:

Fix the LegalDesc field in the Location table by replacing the single quote ( ' ) with `:
Update LOCATION Set LEGALDESC = replace(LEGALDESC,'''','`') WHERE LEGALDESC LIKE '%''%'

NOTE: To use a single quote in an Oracle statement you have to use two single quotes.  Therefore in the Replace above to get a quote you must first quote the string ', then put two single quotes '' and then close the string '.  This gives you four single quotes in a row: ''''

Replace 'Influent' with 'Raw'
Update Vardesc set name = Replace(name, 'Influent', 'Raw')

 

2. Find all variables that are not assigned to a location. 

Select VarNum,Name,Locid from Vardesc where Locid not in (Select LOCID from Location) OR LocId is Null

 

3. Replace Variable Names that start with SB DAF with DAF:

Update Vardesc Set ShortName = Replace(ShortName,'PE','Pri Eff') Where ShortName like 'PE%'

4. Format of dates - use the TO_CHAR SQL function :

Select SAMPLEDTTIME, TO_CHAR(SAMPLEDTTIME,'mm/dd/yyyy'),TO_CHAR(SAMPLEDTTIME,'yyyy-mm-dd'),TO_CHAR(SAMPLEDTTIME,'HH24:MI:SS') FROM LC_SAMPLE WHERE SAMPLEDTTIME IS NOT NULL AND ROWNUM<4
 

Using the format can allow you to truncate the datetime to just a date to allowing you to link LabCal SampleDtTime to the datatbl:

Select LC_SAMPLE.ID,LC_SAMPLE.SAMPLEDBY,LC_SAMPLE.SAMPLEDTTIME, LC_SAMPLETEST.VARID, Datatbl.TextValue FROM LC_SAMPLE,LC_SAMPLETEST,DATATBL WHERE LC_SAMPLE.SAMPLEDTTIME < '2008-02-26' AND LC_SAMPLE.ID=LC_SAMPLETEST.SAMPLEID and LC_SAMPLETEST.VARID = DATATBL.VARID and TO_CHAR(LC_SAMPLE.SAMPLEDTTIME,'mm/dd/yyyy') = TO_CHAR(DATATBL.DATESTAMP,'mm/dd/yyyy')

 

You can use the TO_CHAR Function to match up hours:

Select SAMPLEDTTIME, TO_CHAR(SampleDtTime,'HH24') FROM LC_SAMPLE WHERE SAMPLEDTTIME IS NOT NULL WHERE ROWNUM < 5

 NOTE: Using TO_CHAR you can match up LabCal Samples to the hourly results:

Select LC_SAMPLE.ID,LC_SAMPLE.SAMPLEDBY,LC_SAMPLE.SAMPLEDTTIME, LC_SAMPLETEST.VARID, DATADDH.TextValue FROM LC_SAMPLE,LC_SAMPLETEST,DATADDH WHERE LC_SAMPLE.SAMPLEDTTIME < '2008-02-05' AND LC_SAMPLE.ID=LC_SAMPLETEST.SAMPLEID and LC_SAMPLETEST.VARID = DATADDH.VARID and TO_CHAR(LC_SAMPLE.SAMPLEDTTIME,'mm/dd/yyyy') = TO_CHAR(DATADDH.DATESTAMP,'mm/dd/yyyy') AND TO_CHAR(SAMPLEDTTIME,'HH24') = TO_CHAR(DATADDH.DATESTAMP, 'HH24')

 

5.  Update the StoretCodes in VARDESC table that do not have zero padding.  I.E. StoretCode is 310 instead of 00310:

UPDATE VARDESC SET STORETCODE = CONCAT('00',StoretCode) WHERE LENGTH(STORETCODE)=3

6.  Update the SCADA Interface StartTime and/or StopTime to a default time:

Update vardesc Set StartTime = (Select StartTime from Vardesc where VarNum = 1) where VARTYPE = 'P'

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Created on 2/25/2008 11:06 AM.
Last Modified on 12/29/2011 8:52 AM.
Last Modified by No Author Name Available!.
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