Get database size:
SELECT table_schema "Data Base Name", sum( data_length + index_length ) / 1024 / 1024 "Data Base Size in MB"
FROM information_schema.TABLES GROUP BY table_schema ;
use REPLACE in mysql:
UPDATE table_name SET column_name = REPLACE(column_name,”original_string”,”replace_string”)
concate & replace extra space if any field is missing
SELECT CONCAT(COALESCE(CONCAT(salutation,' '),''),COALESCE(CONCAT(first_name,' '),''),COALESCE(surname,'')) DriverName
//to check mysql version from query
select version();
Sort in ENUM fields :
To sort in ENUM fields using
update survey_event_question_langs set response1= CONCAT(LEFT(`response1`, 1),lower(
SUBSTRING(`response1`, 2)))
SELECT table_schema "Data Base Name", sum( data_length + index_length ) / 1024 / 1024 "Data Base Size in MB"
FROM information_schema.TABLES GROUP BY table_schema ;
use REPLACE in mysql:
UPDATE table_name SET column_name = REPLACE(column_name,”original_string”,”replace_string”)
concate & replace extra space if any field is missing
SELECT CONCAT(COALESCE(CONCAT(salutation,' '),''),COALESCE(CONCAT(first_name,' '),''),COALESCE(surname,'')) DriverName
//to check mysql version from query
select version();
Sort in ENUM fields :
To sort in ENUM fields using
ORDER
BY
clause on use
one of these techniques:
-
Specify the
ENUM
list in alphabetic order.:
like : ORDER BY FIELD(alert_type,'For Sale','For Rent','Sale Agreed') desc -
Make sure that the column is sorted alphabetically rather than by
index number by coding
ORDER BY CAST(
orcol
AS CHAR)ORDER BY CONCAT(
.col
)
update survey_event_question_langs set response1= CONCAT(LEFT(`response1`, 1),lower(
SUBSTRING(`response1`, 2)))
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