I am barely learning MySQL (moving from SQLite). I am trying to create a custom function within the MySQL command line client, but am hitting errors that I can't correct - and can't find answers to online. My first function began as this:
CREATE FUNCTION myDatabase.LCASE_ASCII_VALUE_AT(
unparsedLine VARCHAR(1024),
linePos int
) RETURNS int DETERMINISTIC
return ASCII( LCASE( RIGHT( CHAR_LENGTH(unparsedLine) - linePos + 1) ) );
I got this error:
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') )' at line 10
Any pointers on where my syntax went wrong? I suspected these, but they didn't fix the problem:
Perhaps MySQL does not like compound statements like return ASCII( LCASE( .... But even after manually unraveling the statement, I still got the same error (but on a line in the newly unraveled statement - I leave out the unraveled statement to save space).
Perhaps the DELIMITER $$ [function definition] END $$ DELIMITER ; business is mandatory - but that didn't fix the error, and MySQL documentation gives an example of a one-line function where DELIMITER is not needed. (the 'hello' function at https://dev.mysql.com/doc/refman/5.0/en/create-procedure.html)
EDIT: Added that I am creating this function within MySQL command line client.
right requires two arguments, the string itself and the number of characters. You've only given the character count.
Try this instead:
return ASCII( LCASE( RIGHT( unparsedLine, CHAR_LENGTH(unparsedLine) - linePos + 1) ) );
Also, you may find that substr is a better option since there's no need to calculate the argument to right in that case, something like:
return ASCII( LCASE( SUBSTR( unparsedLine, linePos, 1 ) ) );
Related
I have the Stored procedure like this:
CREATE PROCEDURE ProG()
BEGIN
SELECT * FROM `hs_hr_employee_leave_quota`;
END
But it gives the error:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3
What does the error mean? What is wrong with line number 2?
You have to change delimiter before using triggers, stored procedures and so on.
delimiter //
create procedure ProG()
begin
SELECT * FROM hs_hr_employee_leave_quota;
end;//
delimiter ;
How to find out what this MySQL Error is trying to say:
#1064 - You have an error in your SQL syntax;
This error has no clues in it. You have to double check all of these items to see where your mistake is:
You have omitted, or included an unnecessary symbol: !##$%^&*()-_=+[]{}\|;:'",<>/?
A misplaced, missing or unnecessary keyword: select, into, or countless others.
You have unicode characters that look like ascii characters in your query but are not recognized.
Misplaced, missing or unnecessary whitespace or newlines between keywords.
Unmatched single quotes, double quotes, parenthesis or braces.
Take away as much as you can from the broken query until it starts working. And then use PostgreSQL next time that has a sane syntax reporting system.
Delimiters, delimiters...
You really need them when there are multiple statements in your procedure. (in other words, do you have a ; in your code and then more statements/commands? Then, you need to use delimiters).
For such a simpler rpocedure as yours though, you could just do:
CREATE PROCEDURE ProG()
SELECT * FROM `hs_hr_employee_leave_quota`;
This might be a memmory issue on mysql
try to increase max_allowed_packet in my.ini
MYSQL PROCEDURE steps:
change delimiter from default ' ; ' to ' // '
DELIMITER //
create PROCEDURE, you can refer syntax
NOTE: Don't forget to end statement with ' ; '
create procedure ProG()
begin
SELECT * FROM hs_hr_employee_leave_quota;
end;//
Change delimiter back to ' ; '
delimiter ;
Now to execute:
call ProG();
I got the same error below:
ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near ')' at line 3
When using a trailing comma as shown below:
create table person(
name varchar(50),
); -- ↑ A trailing comma
So, I removed the trailing comma as shown below, then the error was solved:
create table person(
name varchar(50)
); -- ↑ No trailing comma
And, I also got the same error below:
ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near 'count( num int )' at line 1
When there is no space between "count" and "(" as shown below because it's recognized as "count()" which is the built-in function in MySQL:
-- No space
↓
create table count(
num int
);
So, I made a space between "count" and "(" as shown below, then the error was solved:
-- Make a space
↓
create table count (
num int
);
While I'm attempting to make a mySQL function to find a player by their ID, I'm getting repeated syntax errors no matter what I fix, and I'm unclear as to what I'm doing wrong. I've tried reading through other source materials on here to help, but anything I've tried hasn't been successful.
I've tried reading through Error while using lookup function and "MySQL syntax error" while creating a function which I don't think really pertain to my syntax errors, though I'm really new to coding functions in mysql, so I'm unsure what my problems even are.
delimiter //
DROP FUNCTION IF EXISTS findRaider//
CREATE FUNCTION findRaider(ID INT) RETURNS VARCHAR(20)
BEGIN
DECLARE NAME_FOUND VARCHAR DEFAULT " ";
SELECT name INTO NAME_FOUND FROM players WHERE player_id=ID;
RETURN NAME_FOUND;
END;//
delimiter ;
Expected: SELECT findRaider(1); RETURNS "Seranul"
Actual:
ERROR 1327(42000) Undeclared variable: NAME_FOUND
ERROR 1064(42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'RETURN NAME_FOUND' at line 1
ERROR 1064(42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'END' at line 1
I use this code but I see syntax error.
MYSQL 5.5.50.0
IF 2>1 THEN
SELECT "HELLO WORLD!"
END IF;
EDIT: This code Will not work. Because IF Statement only using FUNCTION and procedure.
Error is:
SQL-ERROR: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IF 2>1 THEN
my readSql($sql) function is working most case. I think my MySQL code is wrong.
What is wrong?
Thank you.
EDIT:
IF Statement only using FUNCTION and procedure.
MySQL IF() takes three expressions and if the first expression is true, not zero and not NULL, it returns the second expression. Otherwise, it returns the third expression.
Depending on the context in which it is used, it returns either numeric or string value.
IF(expression ,expr_true, expr_false);
For example, you could have a query:
SELECT IF(1>3,'true','false');
#return false
If you just want return the string 'HELLO WORLD' , you could use:
SELECT CASE WHEN 2 > 1 THEN 'HELLO WORLD' END
What can be the issue in this stored procedure? I have syntax error in this code which I am unable to understand. The sql query inside the code runs perfectly fine but when I try to write it as a stored procedure it throws syntax error.
The error is:
[ERROR in query 1] PROCEDURE 1bot already exists
[ERROR in query 2] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DELIMITER' at line 1
DELIMITER ;;
CREATE PROCEDURE `1bot`()
BEGIN
SELECT
COUNT(distinct orders.customer_id) as Total_Customers,
date_format(orders.created_at,'%M %Y') as month,
COUNT(orders.`increment_id`) as Unique_single_orders,
SUM(orders.`base_subtotal`) as total_rev,
SUM(billing.`total` + 5) as COGS, (
SUM(orders.`base_subtotal`) - SUM(billing.total + 5)) as marketing_expense,
(AVG(orders.`base_subtotal`) - AVG(billing.total + 5)) as avg_acquisition_cost
FROM `sales_flat_order` as orders
LEFT JOIN `sales_flat_order_item` as items on orders.`entity_id` = items.`order_id`
LEFT JOIN `vingo_billing` as billing on orders.`increment_id` = billing.`order_number`
WHERE orders.`created_at` between '2016-09-01 00:00:00' and '2017-01-23'
AND items.sku LIKE "%1bot%"
AND orders.status != "closed"
and orders.shipping_invoiced != '15'
and billing.total > 0
and orders.`total_qty_ordered` < 2;
END ;;
DELIMITER ;
PROCEDURE 1bot already exists
This is self-explanatory. You apparently already have created a procedure named 1bot. MySQL gives you an error because the alternative would be to silently replace the existing procedure with the one you are defining, which may be different. MySQL is protecting you from clobbering a procedure you might need.
If you want to clobber the existing procedure and replace it with new code, you must drop it first:
DROP PROCEDURE `1bot`;;
CREATE PROCEDURE `1bot`() ...
Note that a similar error is given if you try to CREATE TABLE and name a table that already exists.
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DELIMITER'
You should know that the DELIMITER statement is only recognized in the mysql command-line client. The purpose is to change the statement delimiter, which is normally ; or \G, because otherwise you couldn't define a stored procedure or trigger with a body that contains multiple semicolon-delimited statements.
Whereas in most other interfaces, e.g. phpMyAdmin, MySQL Workbench, or when running SQL statements in an application, you can only run one statement at a time anyway, so there's no chance of ambiguity. Therefore DELIMITER is not necessary—and not allowed—in those interfaces.
I have the Stored procedure like this:
CREATE PROCEDURE ProG()
BEGIN
SELECT * FROM `hs_hr_employee_leave_quota`;
END
But it gives the error:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3
What does the error mean? What is wrong with line number 2?
You have to change delimiter before using triggers, stored procedures and so on.
delimiter //
create procedure ProG()
begin
SELECT * FROM hs_hr_employee_leave_quota;
end;//
delimiter ;
How to find out what this MySQL Error is trying to say:
#1064 - You have an error in your SQL syntax;
This error has no clues in it. You have to double check all of these items to see where your mistake is:
You have omitted, or included an unnecessary symbol: !##$%^&*()-_=+[]{}\|;:'",<>/?
A misplaced, missing or unnecessary keyword: select, into, or countless others.
You have unicode characters that look like ascii characters in your query but are not recognized.
Misplaced, missing or unnecessary whitespace or newlines between keywords.
Unmatched single quotes, double quotes, parenthesis or braces.
Take away as much as you can from the broken query until it starts working. And then use PostgreSQL next time that has a sane syntax reporting system.
Delimiters, delimiters...
You really need them when there are multiple statements in your procedure. (in other words, do you have a ; in your code and then more statements/commands? Then, you need to use delimiters).
For such a simpler rpocedure as yours though, you could just do:
CREATE PROCEDURE ProG()
SELECT * FROM `hs_hr_employee_leave_quota`;
This might be a memmory issue on mysql
try to increase max_allowed_packet in my.ini
MYSQL PROCEDURE steps:
change delimiter from default ' ; ' to ' // '
DELIMITER //
create PROCEDURE, you can refer syntax
NOTE: Don't forget to end statement with ' ; '
create procedure ProG()
begin
SELECT * FROM hs_hr_employee_leave_quota;
end;//
Change delimiter back to ' ; '
delimiter ;
Now to execute:
call ProG();
I got the same error below:
ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near ')' at line 3
When using a trailing comma as shown below:
create table person(
name varchar(50),
); -- ↑ A trailing comma
So, I removed the trailing comma as shown below, then the error was solved:
create table person(
name varchar(50)
); -- ↑ No trailing comma
And, I also got the same error below:
ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near 'count( num int )' at line 1
When there is no space between "count" and "(" as shown below because it's recognized as "count()" which is the built-in function in MySQL:
-- No space
↓
create table count(
num int
);
So, I made a space between "count" and "(" as shown below, then the error was solved:
-- Make a space
↓
create table count (
num int
);