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Difference between local and global indexes in DynamoDB
...l Secondary Indexes still rely on the original Hash Key.
When you supply a table with hash+range, think about the LSI as hash+range1, hash+range2.. hash+range6.
You get 5 more range attributes to query on.
Also, there is only one provisioned throughput.
Global Secondary Indexes defines a new paradi...
LAST_INSERT_ID() MySQL
...hat I think must be quite easy. I need to return the LAST INSERTED ID from table1 when I run the following MySql query:
11 ...
Delete all data in SQL Server database
How I can delete all records from all tables of my database? Can I do it with one SQL command or I need for one SQL command per one table?
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Implementing Comments and Likes in database
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The most extensible solution is to have just one "base" table (connected to "likes", tags and comments), and "inherit" all other tables from it. Adding a new kind of entity involves just adding a new "inherited" table - it then automatically plugs into the whole like/tag/comment m...
How to see indexes for a database or table in MySQL?
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To see the index for a specific table use SHOW INDEX:
SHOW INDEX FROM yourtable;
To see indexes for all tables within a specific schema you can use the STATISTICS table from INFORMATION_SCHEMA:
SELECT DISTINCT
TABLE_NAME,
INDEX_NAME
FROM INFORM...
How do I show the schema of a table in a MySQL database?
From the MySQL console, what command displays the schema of any given table?
5 Answers
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How to import CSV file data into a PostgreSQL table?
...ite a stored procedure that imports data from a CSV file and populates the table?
18 Answers
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How to find all the tables in MySQL with specific column names in them?
...rent column names that I want to look up in the entire DB and list out all tables which have those columns. Any easy script?
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Copying data from one SQLite database to another
...id reinserting data, so I was wondering if it was possible to copy a whole table from one database to another?
8 Answers
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What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
For example if I were to have a table "Person" with a column "id" that references a column "id" in table "Worker"
5 Answers...