How can we export all the data from MySQL table into a CSV file?

Giri Raju
Published on 20-Feb-2018 12:45:54
It can be done with the help of SELECT … INTO OUTFILE statement. We are illustrating it with the help of the following example −ExampleSuppose we are having following data from table ‘Student_info’ −mysql> Select * from Student_info; +------+---------+------------+------------+ | id   | Name    | Address    | Subject ... Read More

How can we export some field(s) from MySQL table into a text file?

Abhinanda Shri
Published on 20-Feb-2018 12:47:58
It can be done by providing the column(s) names in the SELECT … INTO OUTFILE statement while exporting the data from MySQL table into a file. We are illustrating it with the help of the following example −ExampleSuppose we are having following data from table ‘Student_info’ −mysql> Select * from ... Read More

What happens if the position of insertion, in MySQL INSERT() function, is out of range?

Swarali Sree
Published on 20-Feb-2018 12:47:53
MySQL INSERT() function performs no insertion if the position of insertion is out of range. The position of insertion can be out of range in the case when we pass a negative or 0(zero) value or the value goes beyond the value of a total number of characters in an ... Read More

How can we export all the data from MySQL table into a text file?

Ankitha Reddy
Published on 20-Feb-2018 12:44:24
It can be done with the help of SELECT … INTO OUTFILE statement. We are illustrating it with the help of the following example − Example Suppose we are having following data from table ‘Student_info’: mysql> Select * from Student_info; +------+---------+------------+------------+ | id | Name ... Read More

Why we cannot use comparison operator(=) for getting the rows with NULL from a table?

Ankith Reddy
Published on 20-Feb-2018 12:40:24
We cannot use = (comparison operator) because we know that NULL is not a value. If we want to get the rows with NULL from a table then we need to use IS NULL operator in MySQL query. Following example using the data from ‘employee’ table will exhibit it −Examplemysql> ... Read More

What are the different wildcard characters that can be used with MySQL LIKE operator?

Samual Sam
Published on 20-Feb-2018 12:37:57
As we know that LIKE operator is used along with WILDCARD characters to get the string having specified string. Basically, WILDCARD is the characters that help search data matching complex criteria. Followings are the types of wildcard which can be used in conjunction with LIKE operator % -The PercentageThe ‘%’ wildcard ... Read More

How can we MySQL LOAD DATA INFILE statement with ‘FIELDS TERMINATED BY’ option to import data from text file into MySQL table?

Abhinaya
Published on 20-Feb-2018 12:40:52
‘FIELDS TERMINATED BY’ option should be used when the text file which we want to import into MySQL table is having the values which are separated by a comma(, ) or maybe with any other separator like a colon(:), semicolon(;) etc. It can be understood with the help of the ... Read More

How can we upload the changed value, rather than written in a text file, of column(s) while importing that text file into MySQL table?

Govinda Sai
Published on 20-Feb-2018 12:37:37
Suppose if we want to upload the changed value rather than the value written in a text file then we need to use user variables along with the SET command. It can be understood with the help of the following example −ExampleSuppose we are having the following data in ‘A.txt’ ... Read More

How MySQL evaluates the blank line between two lines written in the text file while importing that text file into MySQL table?

Ramu Prasad
Published on 20-Feb-2018 12:34:15
Suppose if there is a blank line between two line written in the text file then MySQL evaluates it as the data line while importing that text file into MySQL table. It can be understood with the help of the following example −ExampleSuppose we are having a blank line between ... Read More

How to insert new string within a string subsequent to removing the characters from the original string by using MySQL function?

Arjun Thakur
Published on 20-Feb-2018 12:32:20
We can use MySQL INSERT() function to insert new string within a string after removing the characters from the original string.SyntaxINSERT(original_string, @pos, @len, new_string)Here, original_string is the string in which we want to insert new string at the place of some specific number of characters.@pos is the position at which ... Read More
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