从表中删除行。
语法: sql-statement ::= DELETE FROM [database-name .] table-name [WHERE expr]
从表中检索数据。
语法: sql-statement ::= SELECT [ALL | DISTINCT] result [FROM table-list][WHERE expr][GROUP BY expr-list][HAVING expr][compound-op select]*[ORDER BY sort-expr-list][LIMIT integer [( OFFSET | , ) integer]] result ::= result-column [, result-column]* result-column ::= * | table-name . * | expr [ [AS] string ] table-list ::= table [join-op table join-args]* table ::= table-name [AS alias] |( select ) [AS alias] join-op ::= , | [NATURAL] [LEFT | RIGHT | FULL] [OUTER | INNER | CROSS] JOIN join-args ::= [ON expr] [USING ( id-list )] sort-expr-list ::= expr [sort-order] [, expr [sort-order]]* sort-order ::= [ COLLATE collation-name ] [ ASC | DESC ] compound_op ::= UNION | UNION ALL | INTERSECT | EXCEPT
类似INSERT
语法: sql-statement ::= REPLACE INTO [database-name .] table-name
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