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Writer's picturerenadercdeveju

Update Multiple Rows Mysql Codeigniter: Tips and Tricks for Efficient Database Operations



While I have only 2 columns in my table, ID and Status. I want to update two rows having IDs 1, and 2, using only one time ($this->db->update). Is it possible or should I have to make custom query.I want to do like ($this->db->update(where ID1 == 1 && ID2 == 2)).




Update Multiple Rows Mysql Codeigniter



Codeigniter Update Query Example: This tutorial will show you how to update data in database in codeigniter. Update is one among the CRUD function and a primary process performed on any database system. It is used to update/edit the existing records (entity) in database. Database update can be performed on single or batch level which allows you to update single record one at a time or multiple records all-at-once in the database.


To write update query in codeigniter you have to use 'active record class' library which allows you to write database independent queries and later they are converted into query strings by the respective database adapter and executed.


While writing update query in codeigniter, you can either use where clause separately with where() function like above or just pass it as a string to the $this->db->update() function itself. Here is the example for the latter.


Unlike using multiple where conditions to update a single database row, you can also update multiple rows at once in codeigniter. You must use $this->db->update_batch() function instead of update() to do this.


id = the array of primary keys of the rows being updated.data = the key/value pairs that are being updated. If an object or Entity class is passed to theupdate method, it is first converted to an array.


id = the array of primary keys of the rows being updated.data = the key/value pairs being updated.result = the results of the update() method used through the Query Builder.


For multiple records, selection use checkbox elements and assign record id in the value attribute for accessing it on form submit for select and update records.if(typeof ez_ad_units != 'undefined')ez_ad_units.push([[300,250],'makitweb_com-banner-1','ezslot_9',189,'0','0']);__ez_fad_position('div-gpt-ad-makitweb_com-banner-1-0');


We need to delete and update multiple rows in the backend of our website at times. Suppose you can manually delete and update a single project, but in a large project, you have to use delete and update multiple rows.


You often use joins to query rows from a table that have (in the case of INNER JOIN) or may not have (in the case of LEFT JOIN) matching rows in another table. In MySQL, you can use the JOIN clauses in the UPDATE statement to perform the cross-table update.


if(typeof ez_ad_units!='undefined')ez_ad_units.push([[728,90],'itsolutionstuff_com-box-3','ezslot_15',168,'0','0']);__ez_fad_position('div-gpt-ad-itsolutionstuff_com-box-3-0');In this post, I would like to share with you how to delete multiple records using a checkbox in Codeigniter application. we will jquery ajax for remove multiple rows in CodeIgniter.we always add delete button our listing page, but if you have thousands of records and you added some wrong rows data then it can take time to remove one by one row from a database table. So at that time if you add delete multiple records using checkbox then you have to just select checkboxes and remove at a time.In this example, we will create "items" table with title and description column. Then we will simply add some dummy records. In the next, we will create two routes, one for listing items and another for ajax request. In listing page, we will display all items with a checkbox, then write code for delete selected items. When user will click on delete all button we will get selected checkbox ids and pass in ajax method. Then in ajax request, we will remove all records with that ids.Just follow bellow few step and get example like as bellow preview.Preview:if(typeof ez_ad_units!='undefined')ez_ad_units.push([[300,250],'itsolutionstuff_com-medrectangle-3','ezslot_1',157,'0','0']);__ez_fad_position('div-gpt-ad-itsolutionstuff_com-medrectangle-3-0');if(typeof ez_ad_units!='undefined')ez_ad_units.push([[300,250],'itsolutionstuff_com-medrectangle-3','ezslot_2',157,'0','1']);__ez_fad_position('div-gpt-ad-itsolutionstuff_com-medrectangle-3-0_1');if(typeof ez_ad_units!='undefined')ez_ad_units.push([[300,250],'itsolutionstuff_com-medrectangle-3','ezslot_3',157,'0','2']);__ez_fad_position('div-gpt-ad-itsolutionstuff_com-medrectangle-3-0_2');.medrectangle-3-multi-157border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:15px!important;margin-left:auto!important;margin-right:auto!important;margin-top:15px!important;max-width:100%!important;min-height:250px;min-width:300px;padding:0;text-align:center!importantStep 1: Create items tableIn first step, you have to create one database and then we will create new new table "items" in database. You can use following SQL Query for create "items" table. So let's create using bellow SQL query:Item Table:CREATE TABLE IF NOT EXISTS `items` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `title` varchar(255) COLLATE utf8_unicode_ci NOT NULL, `description` text COLLATE utf8_unicode_ci NOT NULL, PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=16 ;Make sure, after created successfully table, add some dummy records so we can list out that.if(typeof ez_ad_units!='undefined')ez_ad_units.push([[300,250],'itsolutionstuff_com-medrectangle-4','ezslot_4',155,'0','0']);__ez_fad_position('div-gpt-ad-itsolutionstuff_com-medrectangle-4-0');if(typeof ez_ad_units!='undefined')ez_ad_units.push([[300,250],'itsolutionstuff_com-medrectangle-4','ezslot_5',155,'0','1']);__ez_fad_position('div-gpt-ad-itsolutionstuff_com-medrectangle-4-0_1');if(typeof ez_ad_units!='undefined')ez_ad_units.push([[300,250],'itsolutionstuff_com-medrectangle-4','ezslot_6',155,'0','2']);__ez_fad_position('div-gpt-ad-itsolutionstuff_com-medrectangle-4-0_2');.medrectangle-4-multi-155border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:15px!important;margin-left:auto!important;margin-right:auto!important;margin-top:15px!important;max-width:100%!important;min-height:250px;min-width:300px;padding:0;text-align:center!importantStep 2: Add RoutesIn this step, we need to create new routes for list items and ajax request. so open routes.php file and add code like as bellow:application/config/routes.php


In this section, we are going to learn the use of the CodeIgniter application to delete multiple rows using the checkbox. We can delete more than one row in Codeigniter by using jquery ajax. We always use our listing page to delete the button. But delete records will be very difficult for us if we add wrong data in some rows among the thousands of records in the database table. In this case, if we try to delete one by one row, it will take a lot of time and effort. If we want to make it easy, we can add or delete multiple records by the checkbox. This will help us to select checkboxes and delete records at a time.


Similarly, you might wish to delete or update records in multiple tables and undo them if either one fails. Many inserts, updates and delete operations in databases seek such kind of needs. MySQL offers transactions to accommodate the same.


So you see how easy is using transactions in CodeIgniter. Similar to this example, you can perform insert, delete, update or combined queries as well using transactions. This example illustrates inserting records in multiple tables in CodeIgniter with help of transactions.


In this tutorial, we will learn how to insert multiple records into a MySQL table using CI's active records library. Sometime, We may require to insert multiple rows instead of single records. It also takes a few time and adds multiple rows in a database table.


Today, We want to share with you PHP Codeigniter Insert Multiple Records Into MySQL.In this post we will show you How to insert multiple rows in Codeigniter, hear for PHP Codeigniter Inserting Multiple Records Into a Table we will give you demo and example for implement.In this post, we will learn about Codeigniter batch insert, multiple insert in codeigniter with an example.


As I will cover this Post with live Working example to develop codeigniter unable to insert multiple row data to database , so the some major files and Directory structures for this example is following below. 2ff7e9595c


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