Is there anyway to pass JSON list to mysql stored procedure and insert in that sp?
It has to get the data from the list and insert as separate rows with individual columns.
MySQL has a JSON field type, but it does not understand JSON. MySQL only understands SQL. When you input data into MySQL, it has to be in SQL.
You could use another language to interpret the JSON and convert it to SQL.
Related
I tried to add a json column to my database by using phpMyAdmin
but Unfortunately, phpMyAdmin converts the json column to Longtext type
So, I'm asking about the ability to use the JSON Where Clauses with this type
https://laravel.com/docs/5.7/queries#json-where-clauses
You cannot use those queries on non-JSON data types in MariaDB. And as of 10.2, it doesn't officially support it.
You can use the JSON helper functions to query against data (ie: where JSON_CONTAINS(...) and others.
You can also create columns that are extracted values from the JSON data using Virtual Columns
Here's a good post with much more detail.
I stored a field of records as JSON "[1,2,3,14,4]"
In MySQL 5.7, I used JSON_LENGTH to count it.
But How can I count in MySQL 5.5.
This is my example query in MySQL 5.7.
SELECT JSON_LENGTH(view_cnt) AS view_cnt FROM `tbl` WHERE `published`=1
Since mysql v5.5 does not have any json support, you need to get creative using string functions.
If your json is simple and does not have values that themselves contain comma, then just count then number of commas within your string and add 1 to it:
select char_length(json_field)-char_length(replace(json_field,',',''))+1 from table
If your json values contain commas, then you would have to write a json parser in mysql to get the length.
I am new to PostgreSQL database(9.5.0), I need to store my json data in PostgreSQL database, so that I need to create a table for it, how can I create a table for it to store my json object on clicking of submit button from my front-end, so that it will be stored in created database table and my sample josn object is as follows(having key/value pairs, contains files also), Please help me.
{"key1":"value1","key2":"value2","key3":"value3","key4_file_name":"Test.txt"}
PostgreSQL has the json and jsonb (b for binary) data types. You can use these in your table definitions just like any other data type. If you plan to merely store the json data then the json data type is best. If, on the other hand, you plan to do a lot of analysis with the json data inside the PG server, then the jsonb data type is best.
I am new to this community. May be this is a simple question but i have no idea how to store returned result of mysql query in an array which is of OUT parameter type using stored procedure.
Example: I am fetching some data from mysql database (select * from users) and it is returning an array. And I have to pass that array as an OUT parameter of stored procedure, how can i do that?
Can anyone suggest me good tutorial or reference for that?
Thanks in advance.
There isn't an ARRAY datatype in SQL. You can return other values via OUT params though (INT, VARCHAR, etc).
Your query will return a resultset. You can either deal with this inside the procedure using a cursor, put it into another (temporary) table or just exit.
I have a data table which is filled within my application with some values that user has entered them via an excel file. My Application targer .net framework is 2.0 and I can NOT change it to 3.0 or 3.5 in order to use LINQ feature.
So, I have to send my data table values to a stored procedure and contribute them in a join operation.
Is it a good solution or not? If yes, How can I send my Data table to Stored procedure as an input parameter?
Thank you
By using table-valued parameters you can send data to the SQLServer stored procedure. This user-defined type represents the definition of a table structure and is compatible with SQLServer 2008 and next versions.
You can find example and more information referring to this msdn aritcle
Large Complex: For large complex data I'd probably get your data into a *.csv file (if it's not already that way in Excel), use .Net to BCP it into #temp tables, and then on that same connection call the proc and have the proc always know to look for the data in the #temp tables. BCP is the fasted way to get large chunks of data into SQLServer.
Medium Size: If the size of the data is small then you could format it as XML and send that to the proc. Here's a quick example using C# http://www.a2zdotnet.com/View.aspx?Id=107
Small Delimited: For small list type data you might be able to get away with sending it as comma delimited string of values. This is very handy when sending a list of ID's to a proc (http://blog.logiclabz.com/sql-server/split-function-in-sql-server-to-break-comma-separated-strings-into-table.aspx)