mysql-error-1064

问题 I've read every response I could fine on SO before posting this question. Although similar, none addressed my particular problem (or I didn't recognize them doing so). I have a table class that extends Zend_Db_Table_Abstract. In the model, I'm trying to return a single row using a join() method and based on the table ID like this: $getCategoryResults = $this->select(); $getCategoryResults->setIntegrityCheck(false) ->from(array('c'=> 'categories', '*')) ->join(array('e' => 'events'),'c.events

问题 why i get 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 'IF EXISTS(SELECT id FROM mytable WHERE id = '1')' at line 1 query: IF EXISTS(SELECT id FROM mytable WHERE id = '1') Thanks 回答1: IF EXISTS only works in a stored procedure. Outside of a stored procedure, IF() is a function which takes 3 arguments. Proper usage would be SELECT IF(EXISTS(SELECT `column` FROM `table` WHERE `id` = `1`), 1,

问题 I deployed my ASP.NET project on host but take this fail. I am trying to solve this issue for hours but could not. On my first page users enter email and password after click login button they navigate menu. All datas store in mysql db. After publish i could not see mysqldata.dll in bin folder so i have added manually. Please help me to solve this issue. I should deploy in 2 days. This issue is displaying after while i am trying to login. Server Error in '/' Application. Security Exception

问题 I have a Table and Rows in table like below CREATE TABLE Areas(AreaName VARCHAR(255), PinCode VARCHAR(255)) INSERT INTO Areas(AreaName, PinCode) VALUES('Teynampet', '6000018'), ('Ramapuram', '6000089'), ('TNagar', '6000017'), ('Mylapore', '6000014'), ('Gopalapuram', '6000087') I Wrote a SQL Procedure as Below DROP PROCEDURE IF EXISTS mp_test; CREATE PROCEDURE mp_test(IN pArea VARCHAR(255)) BEGIN SET @Query = 'SELECT PinCode FROM Areas'; IF pArea != '' THEN SET @City = CONCAT(' WHERE AreaName

问题 This question already has answers here : How do I Alter Table Column datatype on more than 1 column? (2 answers) Closed 6 years ago . I am using a query to alter the charset of a column ALTER TABLE `media_value_report` CHANGE `index_page_body` `index_page_body` TEXT CHARACTER SET utf8 NULL DEFAULT NULL i want to do this for other columns main_title, landing_page_body as well. But am getting a #1064 error while executing. Can i alter-change multiple columns in a single query? I tried but i

问题 Why I try to do an order by query, I always get an error telling me to check the syntax by the ORDER BY 'order' DESC.... Here's my query: SELECT * FROM posts ORDER BY order DESC; What am I doing wrong?? 回答1: order is a reserved word in SQL; case does not matter. It must be quoted when used as an identifier. From the MySQL Reserved Words documentation: Certain words such as SELECT, DELETE, or BIGINT [or ORDER] are reserved and require special treatment for use as identifiers such as table and

问题 i'm trying to create a cursor for the first time. I have looked at the documentation, i understand the concept, but i can't seem to get it to even be declared... I'm using: MySql 5.1.41 SqlYog as a manager (running locally on a xampp instalation) Even when copy pasting the example found in http://dev.mysql.com/doc/refman/5.1/en/cursors.html CREATE PROCEDURE curdemo() BEGIN DECLARE done INT DEFAULT 0; DECLARE a CHAR(16); DECLARE b,c INT; DECLARE cur1 CURSOR FOR SELECT id,data FROM test.t1;

问题 I have a csv file, a big one, 30 000 rows. I've tried to import it using LOAD file etc.. from the terminal, as I found on google, but it didn't work. It was making the import but my table got to 30 000 rows of NULL cells. After that I tried phpMyAdmin and there I found out that my csv was too big. I've split it in 5 using CSV Splitter. I've made the import for the first file. Everything went great. Than I tried to import the second one, but I got thos error: Fatal error: Allowed memory size

问题 I have a csv file, a big one, 30 000 rows. I've tried to import it using LOAD file etc.. from the terminal, as I found on google, but it didn't work. It was making the import but my table got to 30 000 rows of NULL cells. After that I tried phpMyAdmin and there I found out that my csv was too big. I've split it in 5 using CSV Splitter. I've made the import for the first file. Everything went great. Than I tried to import the second one, but I got thos error: Fatal error: Allowed memory size

问题 So as to use cursors dynamically using MySQL is it possible to declare a cursor in a loop of a stored procedure? I've tried and got an error: increment: LOOP DECLARE cur1 CURSOR FOR SELECT person_id, publication_id FROM p_publication WHERE person_id = new_count; DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1; OPEN cur1; REPEAT FETCH cur1 INTO pub_id, per_id; IF NOT done THEN INSERT INTO test.t2 VALUES (pub_id, per_id); END IF; SET new_count = new_count + 1; UNTIL done END REPEAT; CLOSE