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PostgreSQL function for last inserted ID

...NSERT with RETURNING ) Recall that in postgresql there is no "id" concept for tables, just sequences (which are typically but not necessarily used as default values for surrogate primary keys, with the SERIAL pseudo-type). If you are interested in getting the id of a newly inserted row, there are...
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Export database schema into SQL file

...ere are the steps: Right click the database you want to generate scripts for (not the table) and select tasks - generate scripts Next, select the requested table/tables, views, stored procedures, etc (from select specific database objects) Click advanced - select the types of data to script Clic...
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How can I assign an ID to a view programmatically?

...XML (when possible) and via code (programmatically.) The id is most useful for getting references for XML-defined Views generated by an Inflater (such as by using setContentView.) Assign id via XML Add an attribute of android:id="@+id/somename" to your view. When your application is built, the an...
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Select first row in each GROUP BY group?

... Informix 12.x also supports window functions (the CTE needs to be converted to a derived table though). And Firebird 3.0 will also support Window functions – a_horse_with_no_name Mar 14 '1...
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MySQL JOIN the most recent row only?

... You may want to try the following: SELECT CONCAT(title, ' ', forename, ' ', surname) AS name FROM customer c JOIN ( SELECT MAX(id) max_id, customer_id FROM customer_data GROUP BY customer_id ) c_max ON (c_max.cust...
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SQL query return data from multiple tables

... Joining two or more tables using an inner join (See the wikipedia entry for additional info) How to use a union query Left and Right Outer Joins (this stackOverflow answer is excellent to describe types of joins) Intersect queries (and how to reproduce them if your database doesn't support them) ...
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PostgreSQL - fetch the row which has the Max value for a column

... with a Postgres table (called "lives") that contains records with columns for time_stamp, usr_id, transaction_id, and lives_remaining. I need a query that will give me the most recent lives_remaining total for each usr_id ...
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Can an html element have multiple ids?

... and there can only be a single attribute of type ID per element. Therefore, in XHTML 1.0 the id attribute is defined to be of type ID. In order to ensure that XHTML 1.0 documents are well-structured XML documents, XHTML 1.0 documents MUST use the id attribute when defining fragment ...
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How to get cumulative sum

...| Edit: this is a generalized solution that will work across most db platforms. When there is a better solution available for your specific platform (e.g., gareth's), use it! share | improve this ...
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List of all index & index columns in SQL Server DB

...ir columns. EDIT: This query's getting pretty close to what you're looking for: SELECT TableName = t.name, IndexName = ind.name, IndexId = ind.index_id, ColumnId = ic.index_column_id, ColumnName = col.name, ind.*, ic.*, col.* FROM sys.indexes ind INNE...