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MySQL gets data from multiple tables

I have a eg_design table which contains the following columns: and eg_domains table which contains the following columns: and eg_fonts table which contains the following columns: Now based on $domain_id I want to get all the data from the eg_design table, some from the eg_domains table data as well ...

P粉092778585 2024-04-06 18:42:44

How to get parent_id name of category table from post table

I have the following table in the "Category" table. id name parent_id1 student empty 2 teacher empty 3 math student 14 science student 1 I have the following table in the "Release" table. Post.php file in id name category_id1 Ajay 32 Mohan 3 model publicfunctioncategory(){return$...

P粉936568533 2023-09-12 22:21:06

Delete from two tables in one query

I have two tables in MySQL #messagestable:messageidmessagetitle..#usersmessagestableusersmessageidmessageiduserid.. Now if I want to delete from message table it is ok. But when I delete the message by messageid, the record still exists on usersmessage and I have to delete from both tables immediate...

P粉401901266 2023-08-27 13:45:48

Will migrate BLOB fields in MySQL table to BLOB fields in SQLite table

I have a table in database mysql containing one column of type BLOB. I want to export to sqlite database with similar structure but in sqlite database the target table throws too long bytes error In database mysql the column BLOB belongs to an image I need help please

P粉585541766 2024-04-01 11:14:54

Regular expression - find a regular expression in vim

The original text is simplified as follows (several table creation statements, some tables have the same fields): {code...} I need to select the table creation statements with field2 field in the table, that is, select the following text { Code...} I thought of a regular CREATE\_.\{-}F_class_type\_....

天蓬老师 2017-05-16 16:40:06

How to add delete button in PHP form to delete a row from MySQL table

I have output the results of a MySQL table into an HTML table. In the last column I want to add a delete option that calls another form and deletes the user from the MySQL table. But I can't seem to get it to work. This is the code for my results page: <?php$contacts=mysql_query("SELECT*...

P粉174151913 2023-08-22 12:47:47

Query which table a given value is in

I need some help. In my database I have several tables containing product details, each product has a unique ID. Now I have a given product ID - how do I get the table name of which table this product is stored in since I have different tables in my database? How can I store the table name in a PHP ...

P粉727416639 2023-08-10 14:56:55

When getting data from multiple tables, how to query based on entries in the table in SQL grouping

I have two tables click 2.ride click table id | time ride table id | timestamp I want to get data from both tables GROUPBYEXTRACT(DAYFROMride.timestamp) but only if I have same day in both tables I only get the data when an entry is made, but I need the data regardless of whether the two tables have...

P粉038856725 2024-04-04 08:58:17

I'm trying to compare values in two columns in two different tables

I have two tables, tableA and tableB. Table A has 4 columns, while Table B has 3 columns. The last column of table A is blank and in this column I want to show the difference between the third column in tables A and B. Table A name = valuation_average. Table B name = valuation_cost. Their third colu...

P粉311423594 2024-04-04 20:05:03

javascript - How to click on a certain row in the table and then the corresponding attribute value in the table will appear on the form?

As shown in the picture above, how can I click on a certain row in the table and then the corresponding attribute value in the table will appear at 2 places? . Which part of the form is generated like this?

巴扎黑 2017-07-05 11:01:39

Delete from multiple tables in one statement

Using MySQL, I'm trying to delete multiple records from multiple tables at once. Initially I thought I could do this: DELETEt1,t2FROMtable1t1JOINtable2t2ONt1.id=t2.table1_idJOINtable3t3ONt1.id=t3.table1_idWHEREt1.idIN(?,?,?,?); However, if there are no existing records in table2, I should change the...

P粉716228245 2023-08-18 10:28:49

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