I have a static prompt which is a single select. In that I have two values lets call it A and B. So when I select option 'A' my report pulls all data from the DB which is expected. So when user Select option 'B' the report should pull only the records whose code = 'M'. Here code is a column name in the report.
Note: For option 'A' I don't need to set any prompt in the report because it should pull all records by default.
Let's assume your parameter name is param and data item is named item.
Filter expression:
if (?param? = 'A')
then ([item])
else ('M')
= [item]
Note: You absolutely need to use a prompt. The result of selecting A should be to not filter.
I think I understand, try this:
Make the prompt a single value (i.e. B) with a use value of 'M'
Make the HEADER TEXT for the prompt A (so it is not an actual selection)
Make the filter optional
if the user selects A - the prompt is NULL and the optional filter is ignored
if the user selects B - the filter [Some data item] = ?YourParm? will occur
Also, if you prefer to not have header text
you can make static values A, B and modify the optional filter to be like this:
(?YourParm? <> 'M') OR ([Some data item] = ?YourParm?)
Related
I have data as:
Image of data I have
I want to add flag variables in the data as:
Image of data I want
I have tried the lag function but it didn't work due to the variable being character.
I want to flag any change in string variable.Please help.
I solved this using the query along the lines of:
CREATE TEMP TABLE WANT AS(
SELECT *, CASE WHEN LAG(NAME) OVER(PARTITION BY ID ORDER BY ID) != NAME
THEN 1
ELSE 0
END AS FLAG1
FROM DATA_HAVE
ORDER BY
ID);
No judging, just sharing.
I'm trying to parse information in to a SELECT statement using the two column names 'id' and 'easy_high_score' so I can manipulate values of them two columns in my program, but when trying to get the value of the column 'easy_high_score', which should be an integer like 46 or 20, it instead returns a string of ('easy_high_score',).
Even though there is no mention of [('easy_high_score',)] in the table, it still prints this out. In the table, id 1 has the proper values and information i'm trying get but to no avail. I am fairly new to SQLite3.
if mode == "Easy":
mode = 'easy_high_score'
if mode == "Normal":
mode = "normal_high_score"
if mode == 'Hard':
mode == "hard_high_score"
incrementor = 1 ##This is used in a for loop but not necessary for this post
c.execute("SELECT ? FROM players WHERE id=?", (mode, incrementor))
allPlayers = c.fetchall()
print(allPlayers) #This is printing [('easy_high_score',)], when it should be printing an integer.
Expected Result: 20 (or an integer which represents the high score for easy mode)
Actual Result: [('easy_high_score',)]
Column name cannot be specified using a parameter it should be present verbatim in the query. Modify the line that executes the query like this:
c.execute("SELECT %s FROM players WHERE id=?" % mode, (incrementor,))
A possible cause of this is double quotes vs single quotes.
'SELECT "COLUMN_NAME" FROM TABLE_NAME' # will give values as desired
"SELECT 'COLUMN_NAME' FROM TABLE_NAME" # will give column name like what you got
Let's assume that I have Custom Table named Possible URL target parameters with code name xyz.PossibleTargets with 2 columns:
Explanation and Value.
How to feed drop-down field on page type with data to have Value (from table) as Value and Explanation as name in drop-down?
What I already tried and it is not working:
Generate value;name pairs divided by newline and place it as List of options:
z = ""; foreach (x in CMSContext.Current.GlobalObjects.CustomTables["xyz.PossibleTargets"].Items) {z += x.GetValue("Value"); z +=";"; z += x.GetValue("Explanation"); z += "\n" }; return z;
Validator do no allow me to do such trick.
Set option Macro expression and provide enumerable object:
CMSContext.Current.GlobalObjects.CustomTables["xyz.PossibleTargets"].Items
In Item transformation: {%Explanation%} and in Value column {%TargetValue%}.
This do not work also.
Dropdown configuration
How to do this correctly? Documentation and hints on the fields are not helpful.
Kentico v11.0.26
I think that you should do it without marking field as a macro. Just type there the macro. Take a look on screen
No need to use a macro, use straight SQL, using a macro only complicates what appears to be a simple dropdown list.
SELECT '', '-- select one --' AS Explanation
UNION
SELECT TargetValue, Explanation
FROM xyz_PossibleTargets -- make sure to use the correct table name
ORDER BY ExplanationText
This should populate exactly what you're looking for without the complication of a macro.
I need to import certain information from an Excel file into an Access DB and in order to do this, I am using DAO.
The user gets the excel source file from a system, he does not need to directly interact with it. This source file has 10 columns and I would need to retrieve only certain records from it.
I am using this to retrieve all the records:
Set destinationFile = CurrentDb
Set dbtmp = OpenDatabase(sourceFile, False, True, "Excel 8.0;")
DoEvents
Set rs = dbtmp.OpenRecordset("SELECT * FROM [EEX_Avail_Cap_ALL_DEU_D1_S_Y1$A1:J65536]")
My problem comes when I want to retrieve only certain records using a WHERE clause. The name of the field where I want to apply the clause is 'Date (UCT)' (remember that the user gets this source file from another system) and I can not get the WHERE clause to work on it. If I apply the WHERE clause on another field, whose name does not have ( ) or spaces, then it works. Example:
Set rs = dbtmp.OpenRecordset("SELECT * FROM [EEX_Avail_Cap_ALL_DEU_D1_S_Y1$A1:J65536] WHERE Other = 12925")
The previous instruction will retrieve only the number of records where the field Other has the value 12925.
Could anyone please tell me how can I achieve the same result but with a field name that has spaces and parenthesis i.e. 'Date (UCT)' ?
Thank you very much.
Octavio
Try enclosing the field name in square brackets:
SELECT * FROM [EEX_Avail_Cap_ALL_DEU_D1_S_Y1$A1:J65536] WHERE [Date (UCT)] = 12925
or if it's a date we are looking for:
SELECT * FROM [EEX_Avail_Cap_ALL_DEU_D1_S_Y1$A1:J65536] WHERE [Date (UCT)] = #02/14/13#;
To use date literal you must enclose it in # characters and write the date in MM/DD/YY format regardless of any regional settings on your machine
I am rolling up a huge table by counts into a new table, where I want to change all the empty strings to NULL, and typecast some columns as well. I read through some of the posts and I could not find a query, which would let me do it across all the columns in a single query, without using multiple statements.
Let me know if it is possible for me to iterate across all columns and replace cells with empty strings with null.
Ref: How to convert empty spaces into null values, using SQL Server?
To my knowledge there is no built-in function to replace empty strings across all columns of a table. You can write a plpgsql function to take care of that.
The following function replaces empty strings in all basic character-type columns of a given table with NULL. You can then cast to integer if the remaining strings are valid number literals.
CREATE OR REPLACE FUNCTION f_empty_text_to_null(_tbl regclass, OUT updated_rows int)
LANGUAGE plpgsql AS
$func$
DECLARE
_typ CONSTANT regtype[] := '{text, bpchar, varchar}'; -- ARRAY of all basic character types
_sql text;
BEGIN
SELECT INTO _sql -- build SQL command
'UPDATE ' || _tbl
|| E'\nSET ' || string_agg(format('%1$s = NULLIF(%1$s, '''')', col), E'\n ,')
|| E'\nWHERE ' || string_agg(col || ' = ''''', ' OR ')
FROM (
SELECT quote_ident(attname) AS col
FROM pg_attribute
WHERE attrelid = _tbl -- valid, visible, legal table name
AND attnum >= 1 -- exclude tableoid & friends
AND NOT attisdropped -- exclude dropped columns
AND NOT attnotnull -- exclude columns defined NOT NULL!
AND atttypid = ANY(_typ) -- only character types
ORDER BY attnum
) sub;
-- RAISE NOTICE '%', _sql; -- test?
-- Execute
IF _sql IS NULL THEN
updated_rows := 0; -- nothing to update
ELSE
EXECUTE _sql;
GET DIAGNOSTICS updated_rows = ROW_COUNT; -- Report number of affected rows
END IF;
END
$func$;
Call:
SELECT f_empty2null('mytable');
SELECT f_empty2null('myschema.mytable');
To also get the column name updated_rows:
SELECT * FROM f_empty2null('mytable');
db<>fiddle here
Old sqlfiddle
Major points
Table name has to be valid and visible and the calling user must have all necessary privileges. If any of these conditions are not met, the function will do nothing - i.e. nothing can be destroyed, either. I cast to the object identifier type regclass to make sure of it.
The table name can be supplied as is ('mytable'), then the search_path decides. Or schema-qualified to pick a certain schema ('myschema.mytable').
Query the system catalog to get all (character-type) columns of the table. The provided function uses these basic character types: text, bpchar, varchar, "char". Only relevant columns are processed.
Use quote_ident() or format() to sanitize column names and safeguard against SQLi.
The updated version uses the basic SQL aggregate function string_agg() to build the command string without looping, which is simpler and faster. And more elegant. :)
Has to use dynamic SQL with EXECUTE.
The updated version excludes columns defined NOT NULL and only updates each row once in a single statement, which is much faster for tables with multiple character-type columns.
Should work with any modern version of PostgreSQL. Tested with Postgres 9.1, 9.3, 9.5 and 13.