This question already has answers here:
How to escape back ticks
(7 answers)
Closed 3 years ago.
I have the following sql code:
sqlStatement := `INSERT INTO listings (listing_key,lat,long)
VALUES(?,?,?)`
However, long is a reserved keyword in mysql so i need to escape the column. As in:
sqlStatement := `INSERT INTO listings (listing_key,lat,`long`)
VALUES(?,?,?)`
but that breaks the sql statement.
not sure how to resolve. theres a ton more columns so i need to use the multi line tick.
Both ugly, but you can do one of:
statement:=`INSERT INTO listings (listing_key,lat,`+"`long`)"
or:
statement:=strings.Replace(`INSERT INTO listings (listing_key,lat,^long^)`,"^","`",-1)
Related
This question already has answers here:
When to use single quotes, double quotes, and backticks in MySQL
(13 answers)
Closed 4 months ago.
This line of code is no working, and I cannot for the life of me figure out what is wrong with it.
INSERT INTO teacher (email,password,admin) VALUES (deborah68#example.org,d%6AsQPq7y,1);
this wont run and says the error is near the end of the line
any help is appreciated, the schema is called at3
Why are you not enclosing the string/char data in single quotes ? Assuming they are of datatype varchar, you simply enclose them in single quotes and the command will work.
INSERT INTO teacher (email,password,admin) VALUES ('deborah68#example.org','d%6AsQPq7y',1)
Assuming your email and password are datatype of varchar, try putting '' between the values, or better you can use parameterized value if it's any backend code, try:
INSERT INTO teacher (email,password,admin) VALUES ('deborah68#example.org','d%6AsQPq7y',1);
This question already has an answer here:
How to escape value keyword in mysql while using Select statement
(1 answer)
Closed 3 years ago.
I have to access a MySQL database that looks like this:
LOG_ID KEY TARGET CREATOR
1 okaytest 297d09d5-55fe faec09c0-159e
I can do the following query:
SELECT * FROM DATABASE WHERE LOG_ID=1
This would return me the column correctly.
But I can't do the following query.
SELECT * FROM DATABASE WHERE KEY='okaytest'
I believe that there might be a problem with the word KEY being a reserved keyword in MySQL, but I have to access that specific database, I can't change it's name and I must select it from the key
try like below by using the backtick `
SELECT * FROM DATABASE WHERE `KEY`='okaytest'
actually for reserve word you have to use this backtick otherwise it will thorow error here is the reserve word list
another options better not to use reserve word or incase of necessary you have use it by using backtick
This question already has answers here:
MySQL search and replace some text in a field
(7 answers)
Closed 5 years ago.
I have a table, and in one colu,m I store comma separated strings, like:
book, table, lamp (New)
need to write query loop through all the strings and remove
(New)
I think I can do it by first running a query to fetch results containing (New), then using PHP's REGEX, remove (New) and then update the the same row with new string. However this sounds a bit convoluted. Isn't there a way to do this with a single query?
There is a replace string function in mysql: https://dev.mysql.com/doc/refman/5.7/en/string-functions.html#function_replace
UPDATE <table> SET <column> = REPLACE(<column>,'(NEW)','')
Try it with select first to see if the result is what you want (you may want to remove the trailing space if new is always preceded by it)
This question already has an answer here:
Escaping a single quotation within SQL query
(1 answer)
Closed 7 years ago.
I have ruby script that includes a mysql insert that is working fine until it gets to a row that contains data containing an apostrophe. This row is also being populated using a variable and Im unsure how to escape the character so the insert will work successfully.
Any ideas?
Use the quote method on the connection object:
quote(value, column = nil)
API Documentation Link
Quotes the column value to help prevent SQL injection attacks.
Example:
my_name = ActiveRecord::Base.connection.quote("John O'Neil")
my_address = ActiveRecord::Base.connection.quote("R'lyeh")
query = "INSERT INTO companies (name,address) VALUES (#{my_name}, #{my_address})"
ActiveRecord::Base.connection.execute(query);
Original Post:
See this post: Escaping a single quotation within SQL query
This question already has answers here:
How to do a regular expression replace in MySQL?
(13 answers)
Closed 6 years ago.
I have a table which needs stores some name and i need to replace a few characters before comparing them with another string
For instance, My table data is
abc
ghi:dki
ioe dsa
i read a string from user, which is of the form abc, ghi-dki, ioe-dsa. ie, all blankspaces, multiples spaces and symbols are converted to a hyphon(-). Now i need to compare. something like
SELECT MYCOLUMN FROM MYTABLE WHERE {Converted MYCOLUMN} = 'ghi-dki'
Can someone help me for figuring out which MySQL function can do it?
You can't do a regex replace in MySQL, but you can do a match.
SELECT mycolumn FROM tablename WHERE mycolumn REGEXP Replace('ghi-dki', '-', '^[\s:_-]*$');
Note: I didn't completely fill out the symbols character set, you'll have to add whatever you're using.