I am searching a specific record from my data base Like "Case Name" and Case name field includes special characters also Like "Case-1" , "Case_1" , "Diana's Case" , etc.
So when I search for specific case name using query
select * from TableName where CaseName = 'Case_1'
Then I can find it. But problem is here that if I want to search
select * from TableName where CaseName = 'Diana's Case'
Then it throws exception because of " ' " character.
Is there any solution for it?
Use double ' inside string to escape it.
select *
from TableName
where CaseName = 'Diana''s Case'
Demo
Try this,
SELECT *
FROM TableName
WHERE CaseName = 'Diana''s Case'
Related
How i can get value like this in a variable 'TFSEP-2019','TFjul-2018','TFJun-2018' without spaces.
SELECT s.house, s.grade, s.homeroom AS Campus
FROM student s,fees_jrl f
WHERE s.studnum = f.studnum AND
f.name IN (' TFJun-2018 TFJul-2018 ') AND
f.trans_type= 'chg' AND
f.paid_id is NULL AND s.house LIKE '%'
GROUP BY s.house
I am getting like this ('TFJun-2018 TFJUL-2018 TFSEP-2019') but I want like ('TFSEP-2019','TFjul-2018','TFJun-2018') please help
You may refer the following statements with like operators, whenever you need quotes('), use doubled-quotes('') :
create table tab ( Id int, expression varchar(100));
insert into tab values(1 ,'TFJun-2018 TFJUL-2018 TFSEP-2019');
insert into tab values(2,'''TFJun-2018'',''TFJUL-2018'',''TFSEP-2019''');
select * from tab where expression like '''TFJun-2018''%';
Id expression
2 'TFJun-2018','TFJUL-2018','TFSEP-2019'
or
select * from tab where expression like '''TFJun-2018'',''TFJUL-2018''%';
Id expression
2 'TFJun-2018','TFJUL-2018','TFSEP-2019'
or
select * from tab where expression like '''TFJun-2018'',''TFJUL-2018'',''TFSEP-2019''%';
Id expression
2 'TFJun-2018','TFJUL-2018','TFSEP-2019'
Rextester Demo
You can use like for strings
% means any chars, _ means one char
So doing
F.name like %2018%
Will give you all of 2018..
use explicit join and concat
SELECT
concat( concat( concat( concat("'",s.house),"'"),concat( concat("'",s.grade),"'")),
concat( concat("'",s.homeroom),"'"))
FROM student s join fees_jrl f
on s.studnum = f.studnum
where f.name IN (' TFJun-2018 TFJul-2018 ') AND
f.trans_type= 'chg' AND
f.paid_id is NULL AND s.house LIKE '%'
I think you dont need group by as you have no aggregation function
I feel like I've done this before but missing something. I'm going through a database I inherited and want to see a bunch of DISTINCT values. I was thinking I could do something like this instead of writing cf_840 (or whatever number) a bunch of times and just change the actual field name in one spot...
SET #var = 'cf_840';
SELECT DISTINCT #var, COUNT(#var) AS counter
FROM vtiger_leadscf
GROUP BY #var
ORDER BY #var;
But this isn't working right and I feel like I'm missing something simple but can't find the right thing to search on SO.
You cannot use variables to directly specify fields outside of dynamically constructing a query; at best you can choose a value from a field conditionally, like CASE #var WHEN 840 THEN cf_840 WHEN 1 THEN cf_1 .... etc END AS fieldVal
Otherwise, you need to dynamically construct a query string with the field name "baked" into the query that gets executed.
C# style: var query = String.Format("SELECT {0}, COUNT(DISTINCT {0}) AS counter FROM .... blah blah blah", fieldName);
SQL Proc Style: SET query := 'SELECT ' + fieldName + ', COUNT(DISTINCT ' + fieldName.....and so on, then PREPARE and EXECUTE.
Edit: I'm not sure why you're selecting #var if you're getting the count of its values. I am guessing you want the field name included in the result, so perhaps the examples would be better as SELECT '{0}' as theField, COUNT(DISTINCT {0}) AS counter ... and 'SELECT ''' + fieldName + ''' AS fieldName, COUNT(DISTINCT ' + fieldName ....`
Also, you should not need GROUP BY or ORDER BY clauses, these queries will have only one result row.
To use a variable in the current query, declare it in the body of the SELECT
SELECT DISTINCT #var := 'cf_840' AS fieldName, COUNT(#var) AS counter
FROM vtiger_leadscf
GROUP BY fieldName
ORDER BY counter;
("select * from table where column like ?", ['%' + var1 + '%'])
shows results like "cabcd a", "xyabcd xyz", " xyz abc", "x abc","abc y". But i only want the output to be like "xyz abc", "x abc", "abc y". And abc is stored in var1
I would suggest:
where concat(' ', column, ' ') like "% abc %"
This will find the word anywhere in the column, assuming the only valid separator is a space.
Note: In SQLite, you would use || instead of concat(). Also, if you want performance, look into full text indexes.
EDIT:
The code if the value is stored in a variable looks like:
"select * from table where concat(' ', column, ' ') like ?", ['% ' + var1 + ' %'])
SELECT *
FROM #temp1
WHERE name LIKE '% abc%'
OR name LIKE 'abc_%'
Try this:
SELECT * FROM table_name
WHERE column LIKE "% abc%" OR column LIKE "%abc %" OR column="abc";
You can use REGEXP and the [[:<:]] and [[:>:]] word-boundary markers:
SELECT * FROM table WHERE column REGEXP "[[:<:]]abc[[:>:]]";
you have to declare the variable
DECLARE #Pattern_Val AS CHAR(7)
SET #Pattern_Val = '% abc %'
SELECT * FROM table WHERE column LIKE #Pattern_Val
CAUTION: Pay attention to the length of the CHAR - Definition!!
Since your String is saved in a variable try something like this:
SELECT * FROM table WHERE (column LIKE CONCAT('% ', var1, '%') OR column LIKE CONCAT(var1,' %'));
Extra parentheses are to avoid confusion if you add more constraints (AND operators have precedence over OR).
How about searching with spaces on either side:
select * from table where column like "% abc%" or column like "%abc %"
I have a field urn_sem.studentid that I'd like to replace a few characters in; for example:
ABC/2011/BCOMH_NC/I/12 → ABC/2011/BCOMH/I/12
ABC/2011/BCOMH_NC/I/24 → ABC/2011/BCOMH/I/24
I've tried this query:
SELECT REPLACE(studentid, 'KNC/2011/BCOMH_NC/', ' KNC/2011/BCOMH/')
FROM urn_sem
but it doesn't show the new value.
Do you want this:
update urn_sem
set studentid = REPLACE(studentid, 'KNC/2011/BCOMH_NC/', ' KNC/2011/BCOMH/')
where studentid like '%KNC/2011/BCOMH_NC/%'
The WHERE clause is optional. It ensures that the replace is only on rows that change.
And this sample query does not work?
SELECT REPLACE (studentid, '_', '') FROM urn_sem
There are two columns in a MySQL table: SUBJECT and YEAR.
I want to generate an alphanumeric unique number which holds the concatenated data from SUBJECT and YEAR.
How can I do this? Is it possible to use a simple operator like +?
You can use the CONCAT function like this:
SELECT CONCAT(`SUBJECT`, ' ', `YEAR`) FROM `table`
Update:
To get that result you can try this:
SET #rn := 0;
SELECT CONCAT(`SUBJECT`,'-',`YEAR`,'-',LPAD(#rn := #rn+1,3,'0'))
FROM `table`
You can use mysql built in CONCAT() for this.
SELECT CONCAT(`name`, ' ', `email`) as password_email FROM `table`;
change field name as your requirement
then the result is
and if you want to concat same field using other field which same then
SELECT filed1 as category,filed2 as item, GROUP_CONCAT(CAST(filed2 as CHAR)) as item_name FROM `table` group by filed1
then this is output
In php, we have two option to concatenate table columns.
First Option using Query
In query, CONCAT keyword used to concatenate two columns
SELECT CONCAT(`SUBJECT`,'_', `YEAR`) AS subject_year FROM `table_name`;
Second Option using symbol ( . )
After fetch the data from database table, assign the values to variable, then using ( . ) Symbol and concatenate the values
$subject = $row['SUBJECT'];
$year = $row['YEAR'];
$subject_year = $subject . "_" . $year;
Instead of underscore( _ ) , we will use the spaces, comma, letters,numbers..etc
In query, CONCAT_WS() function.
This function not only add multiple string values and makes them a single string value. It also let you define separator ( ” “, ” , “, ” – “,” _ “, etc.).
Syntax –
CONCAT_WS( SEPERATOR, column1, column2, ... )
Example
SELECT
topic,
CONCAT_WS( " ", subject, year ) AS subject_year
FROM table
I have two columns:
prenom and nom so to concatenate into a column with name chauffeur_sortant I used this script:
SELECT date as depart, retour, duree_mission, duree_utilisation, difference, observation, concat( tb_chaufeur_sortant.prenom, ' ', tb_chaufeur_sortant.nom) as chauffeur_sortant, concat(tb_chaufeur_entrant.prenom, ' ', tb_chaufeur_entrant.nom) as chauffeur_entrant
FROM tb_passation
INNER JOIN tb_vehicule
ON tb_vehicule.id = tb_passation.id_vehicule
INNER JOIN tb_chaufeur_sortant
ON tb_chaufeur_sortant.id = tb_passation.id_sortant
INNER JOIN tb_chaufeur_entrant
ON tb_chaufeur_entrant.id = tb_passation.id_entrant WHERE tb_vehicule.id = '';
$crud->set_relation('id','students','{first_name} {last_name}');
$crud->display_as('student_id','Students Name');