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Importing files from different folder
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edited Sep 21 at 14:33
answered Dec 8 '10 at 2:12
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Computed / calculated / virtual / derived columns in PostgreSQL
...- as defined in the SQL standard and implemented by some RDBMS including DB2, MySQL and Oracle. Nor the similar "computed columns" of SQL Server.
STORED generated columns are introduced with Postgres 12. Trivial example:
CREATE TABLE tbl (
int1 int
, int2 int
, product bigint GENERATED ALW...
How to make a great R reproducible example
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23 Answers
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I want to execute shell commands from Maven's pom.xml
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edited Dec 4 '12 at 15:24
Keppil
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What does ||= (or-equals) mean in Ruby?
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horizontal scrollbar on top and bottom of table
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238
To simulate a second horizontal scrollbar on top of an element, put a "dummy" div above the el...
How to update column with null value
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228
No special syntax:
CREATE TABLE your_table (some_id int, your_column varchar(100));
INSERT I...
How to use enum values in f:selectItem(s)
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210
JSF has a builtin converter for enum, so this should do:
@ManagedBean
@ApplicationScoped
publ...