MySql 查询将小写变为大写

Question

How to change all lower cases in a string to upper cases using MySql Query?

Answer 1

如果要更新：

UPDATE my_table SET my_column = UPPER(my_column)

Answer 2

Have a look at using UPPER

Returns the string str with all characters changed to uppercase according to the current character set mapping.

From the LINK

UCASE() is a synonym for UPPER().

Have a look at this example

SQL Fiddle DEMO

Here is an example of changing the table data

Answer 3

Use upper() or UCASE()

Example:

SELECT UCASE(columnName) FROM `table_name` 
SELECT UPPER(columnName) FROM `table_name`

Updation

UPDATE table_name SET field_name = UPPER(field_name)
UPDATE table_name SET field_name = UCASE(field_name)

Answer 4

You can use UPPER for this:

select upper(MyColumn) 
from MyTable

Answer 5

您可以使用此代码更改查询 SQL 的大写：

UPDATE penduduk SET dusun = UPPER(dusun);

Answer 6

For column updates on a table, it may depend on if your collation is case insensitive . If that is the case then try using Binary comparison :

update table_name
set column_name = BINARY UPPER(column_name)

Otherwise this should work,

update table_name
set column_name = UPPER(column_name)

If you are using MYSQL Workbench and have safe updates on then try:

update table_name
set column_name = BINARY UPPER(column_name)
WHERE  column_name = BINARY LOWER(column_name)

Answer 7

If you are using phpMyAdmin goes to SQL then type

UPDATE `tableName` SET `ColumnName`=UPPER(`ColumnName`)

Eg:

UPDATE`cars` SET `Model`=UPPER(`Model`)

then save it.

PS: If you are a learner, follow this TIP

Before you type the tablename , you need to type this sign ` before and after, as well as when you type the column name.

Answer 8

UPDATE TableName SET ColumnName = UPPER(ColumnName)