Look at the query and result generated in sqlplus :
SELECT
plan_line_id,
LPAD (a.plan_operation || ' ' || a.plan_options,
LENGTH (a.plan_operation || ' ' || a.plan_options) + a.plan_depth * 3
) OPERATION,
a.plan_cost COST,
output_rows "ROWS"
FROM gV$SQL_PLAN_MONITOR a
WHERE sql_id = '8gan9d0z7bzhm'
Looks pretty cool doesn't it ;)
And the same result in grid report :
Apex 21 removes all spaces generated by lpad function. The same problem is with classic report and classic grid :( any idea why ?
You'll have to use a character which can be correctly interpreted by your browser - instead of a space, use a non-breaking space, the   character.
Something like this (I'm using the # character in the CTE, which is then replaced by :
WITH
temp
AS
(SELECT plan_line_id,
LPAD (
a.plan_operation || ' ' || a.plan_options,
LENGTH (a.plan_operation || ' ' || a.plan_options)
+ a.plan_depth * 3,
'#') OPERATION, --> here
a.plan_cost COST,
output_rows "ROWS"
FROM a1_test a
WHERE sql_id = '9p4xcx2gd8u49')
SELECT plan_line_id,
REPLACE (operation, '#', ' ') operation, --> here
cost,
"ROWS"
FROM temp
Turn "Operation" column's **Escape special characters" property OFF.
The result is then
Not as pretty as you'd want it to, but it is better than what you currently have.
Related
I have a table that contains run numbers. This is then linked to a second table that contains the serial numbers of the panels that go through each run. I was wondering is it possible to design a query that will give for each run number the serial numbers.
I would like it in a table like:
Run Number1, First Serial Number for 1, Second Serial Number for 1, etc..
Run Number2, First Serial Number for 2, Second Serial Number for 2, etc..
I can get in in the form:
Run Number1, First Serial Number for 1
Run Number1, Second Serial Number for 1
Run Number2, First Serial Number for 2
Run Number2, Second Serial Number for 2
Is there a way to set this up?
You can use my DJoin function as this will accept SQL as the source, thus you won't need additional saved queries:
' Returns the joined (concatenated) values from a field of records having the same key.
' The joined values are stored in a collection which speeds up browsing a query or form
' as all joined values will be retrieved once only from the table or query.
' Null values and zero-length strings are ignored.
'
' If no values are found, Null is returned.
'
' The default separator of the joined values is a space.
' Optionally, any other separator can be specified.
'
' Syntax is held close to that of the native domain functions, DLookup, DCount, etc.
'
' Typical usage in a select query using a table (or query) as source:
'
' Select
' KeyField,
' DJoin("[ValueField]", "[Table]", "[KeyField] = " & [KeyField] & "") As Values
' From
' Table
' Group By
' KeyField
'
' The source can also be an SQL Select string:
'
' Select
' KeyField,
' DJoin("[ValueField]", "Select ValueField From SomeTable Order By SomeField", "[KeyField] = " & [KeyField] & "") As Values
' From
' Table
' Group By
' KeyField
'
' To clear the collection (cache), call DJoin with no arguments:
'
' DJoin
'
' Requires:
' CollectValues
'
' 2019-06-24, Cactus Data ApS, Gustav Brock
'
Public Function DJoin( _
Optional ByVal Expression As String, _
Optional ByVal Domain As String, _
Optional ByVal Criteria As String, _
Optional ByVal Delimiter As String = " ") _
As Variant
' Expected error codes to accept.
Const CannotAddKey As Long = 457
Const CannotReadKey As Long = 5
' SQL.
Const SqlMask As String = "Select {0} From {1} {2}"
Const SqlLead As String = "Select "
Const SubMask As String = "({0}) As T"
Const FilterMask As String = "Where {0}"
Static Values As New Collection
Dim Records As DAO.Recordset
Dim Sql As String
Dim SqlSub As String
Dim Filter As String
Dim Result As Variant
On Error GoTo Err_DJoin
If Expression = "" Then
' Erase the collection of keys.
Set Values = Nothing
Result = Null
Else
' Get the values.
' This will fail if the current criteria hasn't been added
' leaving Result empty.
Result = Values.Item(Criteria)
'
If IsEmpty(Result) Then
' The current criteria hasn't been added to the collection.
' Build SQL to lookup values.
If InStr(1, LTrim(Domain), SqlLead, vbTextCompare) = 1 Then
' Domain is an SQL expression.
SqlSub = Replace(SubMask, "{0}", Domain)
Else
' Domain is a table or query name.
SqlSub = Domain
End If
If Trim(Criteria) <> "" Then
' Build Where clause.
Filter = Replace(FilterMask, "{0}", Criteria)
End If
' Build final SQL.
Sql = Replace(Replace(Replace(SqlMask, "{0}", Expression), "{1}", SqlSub), "{2}", Filter)
' Look up the values to join.
Set Records = CurrentDb.OpenRecordset(Sql, dbOpenSnapshot)
CollectValues Records, Delimiter, Result
' Add the key and its joined values to the collection.
Values.Add Result, Criteria
End If
End If
' Return the joined values (or Null if none was found).
DJoin = Result
Exit_DJoin:
Exit Function
Err_DJoin:
Select Case Err
Case CannotAddKey
' Key is present, thus cannot be added again.
Resume Next
Case CannotReadKey
' Key is not present, thus cannot be read.
Resume Next
Case Else
' Some other error. Ignore.
Resume Exit_DJoin
End Select
End Function
' To be called from DJoin.
'
' Joins the content of the first field of a recordset to one string
' with a space as delimiter or an optional delimiter, returned by
' reference in parameter Result.
'
' 2019-06-11, Cactus Data ApS, Gustav Brock
'
Private Sub CollectValues( _
ByRef Records As DAO.Recordset, _
ByVal Delimiter As String, _
ByRef Result As Variant)
Dim SubRecords As DAO.Recordset
Dim Value As Variant
If Records.RecordCount > 0 Then
While Not Records.EOF
Value = Records.Fields(0).Value
If Records.Fields(0).IsComplex Then
' Multi-value field (or attachment field).
Set SubRecords = Records.Fields(0).Value
CollectValues SubRecords, Delimiter, Result
ElseIf Nz(Value) = "" Then
' Ignore Null values and zero-length strings.
ElseIf IsEmpty(Result) Then
' First value found.
Result = Value
Else
' Join subsequent values.
Result = Result & Delimiter & Value
End If
Records.MoveNext
Wend
Else
' No records found with the current criteria.
Result = Null
End If
Records.Close
End Sub
Full documentation can be found in my article:
Join (concat) values from one field from a table or query
If you don't have an account, browse to the link: Read the full article.
Code is also on GitHub: VBA.DJoin
I am trying to run a query in Oracle 11g where I am looking in a VARCHAR column for any rows that contain any of a carriage return, new line or tab. So far my code is as shown
select c1 from table_name where regexp_like(c1, '[\r\n\t]')
Not sure why but I am getting unexpected results. I saw some mention that Oracle doesnt support '\r' or any of the other characters I used? Some folks mentioned to use chr(10) for example and then I tried the following code
select c1 from table_name where regexp_like(c1, '[chr(10)|chr(13)]')
And again I am getting unexpected results. Pretty sure I am misunderstanding something here and I was hoping for some guidance.
You can use:
select c1
from table_name
where c1 LIKE '%' || chr(10) || '%'
or c1 LIKE '%' || chr(13) || '%'
or c1 LIKE '%' || chr(9) || '%';
or
select c1
from table_name
where regexp_like(c1, '[' || chr(10) || chr(13) || chr(9) || ']')
fiddle
where regexp_like(c1, '[\r\n\t]') does not work as you are matching any character that is \ or r or \ or n or \ or t (and not matching the perl-like character sets \r, \n or \t).
where regexp_like(c1, '[chr(10)|chr(13)]') does not wotk as you are matching any character that is c or h or r or ( or 1 or 0 or ) or | or c or h or r or ( or 1 or 3 or ) as you have a string literal and are not evaluating the contents of the literal. If you want to evaluate them as calls to the CHR function then it must be outside the string literal as the second example above.
I'm working for a company undergoing acquisition at the moment. They use Oracle 11g and have a requirement for identifying all references to the current company name in their databases and having these listed by the schema/owner, table, column and number of occurrences in that column.
I've used the following with some success, as taken from another answer.
SET SERVEROUTPUT ON SIZE 100000
DECLARE
match_count INTEGER;
BEGIN
FOR T IN
(
SELECT owner, table_name, column_name
FROM all_tab_columns
WHERE
OWNER <> 'SYS' AND DATA_TYPE LIKE '%CHAR%'
) LOOP
EXECUTE IMMEDIATE
'SELECT COUNT(*) FROM ' || t.owner || '.' || t.table_name ||
' WHERE '||t.column_name||' = :1'
INTO MATCH_COUNT
USING 'NAME';
IF MATCH_COUNT > 0 THEN
dbms_output.put_line( t.owner ||' '|| t.table_name ||' '||t.column_name||' '||match_count );
END IF;
END LOOP;
END;
/
However it only finds literal strings of NAME and I also want to find Name, Name Shops, Name Accounts, Name someOtherStringICantGuess etc. So I think i should use a regular expression. I'm fine with the regular expression part, but it's how to incorporate it into the above functionality I'm unsure of. In fact i'm uncertain whether I will be adapting the above code, or doing something completely different.
One last thing: performance and duration of the run of the script are irrelevant and subordinate to the certainty of every column being checked. There is a dedicated environment that mimics production where this script will be deployed so it won't adversely affect the company's customers.
Thanks in advance.
EDIT: Just removed some company specific code...
The simplest method is to surround your search with upper.
SET SERVEROUTPUT ON SIZE 100000
DECLARE
-- set l_wildcard_search to true if you are using wildcards ('%'),
-- false if you want a straight match on the name
-- Wild card searches (like) are not able to use indexes whereas '='
-- potentially can.
l_wildcard_search CONSTANT BOOLEAN := FALSE;
match_count INTEGER;
--
l_searchvalue VARCHAR2 (100) := UPPER ('NAME');
l_cmd VARCHAR2 (200);
BEGIN
FOR t IN (SELECT owner, table_name, column_name
FROM all_tab_columns
WHERE owner NOT IN ('SYS', 'SYSTEM')
AND data_type LIKE '%CHAR%')
LOOP
BEGIN
l_cmd := 'SELECT COUNT(*) FROM '
|| t.owner
|| '.'
|| t.table_name
|| ' WHERE upper('
|| t.column_name
|| ')'
|| CASE WHEN l_wildcard_search THEN ' like ' ELSE ' = ' END
|| ':1';
DBMS_OUTPUT.put_line (l_cmd);
EXECUTE IMMEDIATE l_cmd INTO match_count USING l_searchvalue;
IF match_count > 0
THEN
DBMS_OUTPUT.put_line (t.owner || ' ' || t.table_name || ' ' || t.column_name || ' ' || match_count);
END IF;
EXCEPTION
WHEN OTHERS
THEN
DBMS_OUTPUT.put_line ('Error executing: ' || l_cmd);
END;
END LOOP;
END;
/
Here is your answer using regular expressions
SET SERVEROUTPUT ON SIZE 100000
DECLARE
match_count INTEGER;
l_searchvalue VARCHAR2 (100) := UPPER ('NAME');
l_cmd VARCHAR2 (200);
BEGIN
FOR t IN (SELECT owner, table_name, column_name
FROM all_tab_columns
WHERE owner NOT IN ('SYS', 'SYSTEM')
AND data_type LIKE '%CHAR%' and rownum < 10)
LOOP
BEGIN
l_cmd := 'SELECT COUNT(*) FROM '
|| t.owner
|| '.'
|| t.table_name
|| ' WHERE regexp_like('
|| t.column_name
|| ', :1)';
DBMS_OUTPUT.put_line (l_cmd);
EXECUTE IMMEDIATE l_cmd INTO match_count USING l_searchvalue;
IF match_count > 0
THEN
DBMS_OUTPUT.put_line (t.owner || ' ' || t.table_name || ' ' || t.column_name || ' ' || match_count);
END IF;
EXCEPTION
WHEN OTHERS
THEN
DBMS_OUTPUT.put_line ('Error executing: ' || l_cmd);
END;
END LOOP;
END;
/
How to write a regular expression for a text field which accepts all characters except a comma (,) and do not accept a white space at both the ends? I have tried
[^,][\B ]
but no use
like 'product generic no' instead of 'product,generic,no' or ' product generic no '
I suggest a solution without regular expression. As you said you're using JS so the function is in JavaScript:
function isItInvalid(str) {
var last = str.length - 1;
return (last < 2 ||
str[0] == ' ' ||
str[last] == ' ' ||
str.indexOf(',') != -1);
}
EDIT: Just made it a bit more readable. It also checks if the string is at least 3 chars.
Something like below:
/^\S[^,]*\S$/
Using a Perl regular expression
/^\S[^,]*\S$/
This should work from 2 characters up, but fails in the edge case where the string has only one non-comma character. To cover that too:
/^((\S[^,]*\S)|([^\s,]))$/
Background
A locution is a noun-phrase consisting of at least two words, such as:
black olive
hot pepper sauce
rose finn apple potato
The separate words black and olive are an adjective (black - JJ) and a noun (olive - NN). However, humans know that black olive is a noun (that differentiates it from, say, a green olive).
The problem here is how to most efficiently transform a list of normalized ingredient names (such as the list above) into a specific format for a natural language processor (NLP).
Example Data
The table can be created as follows:
CREATE TABLE ingredient_name (
id bigserial NOT NULL, -- Uniquely identifies the ingredient.
label character varying(30) NOT NULL
);
The following SQL statements show actual database records:
insert into ingredient_name (label) values ('alfalfa sprout');
insert into ingredient_name (label) values ('almond extract');
insert into ingredient_name (label) values ('concentrated apple juice');
insert into ingredient_name (label) values ('black-eyed pea');
insert into ingredient_name (label) values ('rose finn apple potato');
Data Format
The general format is:
lexeme1_lexeme2_<lexemeN> lexeme1_lexeme2_lexemeN NN
Given the list of words above, the NLP expects:
black_<olive> black_olive NN
hot_pepper_<sauce> hot_pepper_sauce NN
rose_finn_apple_<potato> rose_finn_apple_potato NN
The database has a table (recipe.ingredient_name) and a column (label). The labels are normalized (e.g., single space, lower case).
SQL Statement
The code that produces the expected results:
CREATE OR REPLACE VIEW ingredient_locutions_vw AS
SELECT
t.id,
-- Replace spaces with underscores
translate( t.prefix, ' ', '_' )
|| '<' || t.suffix || '>' || ' ' ||
translate( t.label, ' ', '_' )
|| ' NN' AS locution_nlp
FROM (
SELECT
id,
-- Ingredient name
label,
-- All words except the last word
left( label, abs( strpos( reverse( label ), ' ' ) - length( label ) ) + 1 ) AS prefix,
-- Just the last word
substr( label,
length( label ) - strpos( reverse( label ), ' ' ) + 2
) AS suffix
FROM
ingredient_name
WHERE
-- Limit set to ingredient names having at least one space
strpos( label, ' ' ) > 0
) AS t;
Question
What is a more efficient (or elegant) way to split the prefix (all words except the first) and suffix (just the last word) in the above code?
The system is PostgreSQL 9.1.
Thank you!
CREATE OR REPLACE VIEW ingredient_locutions_vw AS
SELECT
t.id,
format('%s_<%s> %s NN',
array_to_string(t.prefix, '_'),
t.suffix,
array_to_string(t.label, '_')
) AS locution_nlp
FROM (
SELECT
id,
-- Ingredient name
label,
-- All words except the last word
label[1:array_length(label, 1) - 1] AS prefix,
-- Just the last word
label[array_length(label, 1)] AS suffix
FROM (
select id, string_to_array(label, ' ') as label
from ingredient_name
) s
WHERE
-- Limit set to ingredient names having at least one space
array_length(label, 1) > 1
) AS t;
select * from ingredient_locutions_vw ;
id | locution_nlp
----+--------------------------------------------------------
1 | alfalfa_<sprout> alfalfa_sprout NN
2 | almond_<extract> almond_extract NN
3 | concentrated_apple_<juice> concentrated_apple_juice NN
4 | black-eyed_<pea> black-eyed_pea NN
5 | rose_finn_apple_<potato> rose_finn_apple_potato NN
(5 rows)