| column4 | decimal(10,0) | YES | | NULL | | > SELECT CAST(column3 AS DECIMAL) AS column4 So I tried with casting FLOAT to DECIMAL as follows - CREATE TABLE table3 ( Now, I wanted to make sure that creating a new table with column declared by casting actually works. Here, strangely enough, even after casting VARCHAR(100) AS CHAR(100), the declaration still remains as VARCHAR(100) | column2 | varchar(100) | YES | | NULL | | If the input isn't a character string, the output has the default collation of the database, and a collation label of coercible-default. This function is similar to the CONVERT () function in MySQL. When the CAST or CONVERT functions output a character string, and they receive a character string input, the output has the same collation and collation label as the input. For example, adding a numeric value in string quotes to another numeric value with not give the usual. It is mostly used with WHERE, HAVING, and JOIN clauses. By default, MySQL is not strict with type casting. The question that I have therefor is, is what is.
#Mysql cast code
This code works in MSSQL but not in MYSQL. > SELECT CAST(column1 AS CHAR(100)) AS column2 The CAST () function in MySQL is used to convert a value from one data type to another data type specified in the expression. The query my question relates to is: SELECT CAST ( CAST ( (initialpremium - totalpremium) / 2 CAST (premiummultiplier AS INT) AS FLOAT) FROM policy / rest of the query. Now I create another table table2 from table1 where I create a single column column2 and declaring it by casting column1 from table1 as CHAR(100) - CREATE TABLE table2 AS To be safe, always use complete datetime, date, or time strings when doing comparisons. | column1 | varchar(100) | YES | | NULL | | | Field | Type | Null | Key | Default | Extra | For example, MySQL automatically converts strings to numbers as necessary, and vice versa. When an operator is used with operands of different types, type conversion occurs to make the operands compatible.
#Mysql cast manual
I create a table table1 with a single column column1 declared as VARCHAR(100) - CREATE TABLE table1 ( MySQL 5.7 Reference Manual / / Type Conversion in Expression Evaluation.
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