Specifies any field or combination of fields in the table for creating a candidate index. A table can have multiple candidate indexes. However, if you previously created a primary index with one of the PRIMARY KEY options, you cannot include the field that was specified for the primary index....
Specifies any field or combination of fields in the table for creating a candidate index. A table can have multiple candidate indexes. However, if you previously created a primary index with one of thePRIMARY KEYoptions, you cannot include the field that was specified for the primary index. ...
Specifies any field or combination of fields in the table for creating a candidate index. A table can have multiple candidate indexes. However, if you previously created a primary index with one of thePRIMARY KEYoptions, you cannot include the field that was specified for the primary index. ...
#sparksql模式spark.sql("REFRESH TABLE db.tablename")# dataframe模式spark.Catalog.refreshTable("db.tablename")
Convert text from a file or from stdin into SQL table and query it instantly. Uses sqlite as backend. The idea is to make SQL into a tool on the command line or in scripts. - tobimensch/termsql
TableDirect- Name of a table. The defaultCommandTypetype,Text, is used for executing queries and other SQL commands. SeeSection 6.1.2, “The MySqlCommand Object”for usage examples. IfCommandTypeis set toStoredProcedure, setCommandTextto the name of the stored procedure to access. For use-case...
For more information about using user-defined functions, see User-Defined Functions with SELECT in the Remarks section. Each item you specify with Select_Item generates one column of the query results. If two or more items have the same name, include the table alias and a period before the ...
The COPY command will be obsoleted in future releases of SQL*Plus. COPY supports the datatypes listed for the COPY command, but no new datatypes will be supported. COPY Command Syntax COPY {FROMdatabase| TOdatabase| FROMdatabaseTOdatabase} {APPEND|CREATE|INSERT|REPLACE}destination_table[(column...
sq:example.sqlite3=> create table test (test_id int, name string); CREATE TABLE sq:example.sqlite3=> insert into test (test_id, name) values (1, 'hello'); INSERT 1 sq:example.sqlite3=> select * from test; test_id | name +---+---+ 1 | hello (1 rows) sq:example.sqlite3=...
That’s where a different verb DESCRIBE comes handy; it shows the attributes of an object, similar to what the describe command in SQL*Plus command does for a table to display the columns. Here is how you display the attributes of the physicaldisk object. Remember, unlike SQL*Plus, the ...