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E EXECUTE EXPDP DATABASE EXPDP TABLE EXPLAIN EXPLAIN PLAN 父主题: SQL语法
E EXECUTE EXECUTE DIRECT EXPDP DATABASE EXPDP TABLE EXPLAIN EXPLAIN PLAN 父主题: SQL语法
gaussdb=# EXPDP TABLE test_t LOCATION = '/data1/expdp/table0'; 父主题: E
gaussdb=# DROP TABLE reason; 相关链接 7.13.16.2-PREPARE,DEALLOCATE 父主题: E
gaussdb=# DROP TABLE reason; 相关链接 7.13.16.2-PREPARE,DEALLOCATE 父主题: E
gaussdb=# EXPDP DATABASE test LOCATION = '/data1/expdp/database'; 父主题: E
gaussdb=# DROP TABLE tbl_range; 父主题: E
gaussdb=# DROP SCHEMA tpcds CASCADE; 相关链接 ANALYZE | ANALYSE 父主题: E
gaussdb=# EXPDP DATABASE test LOCATION = '/data1/expdp/database'; 父主题: E
gaussdb=# EXPDP TABLE test_t LOCATION = '/data1/expdp/table0'; 父主题: E
gaussdb=# DELETE FROM plan_table WHERE STATEMENT_ID = 'TPCH-Q4'; gaussdb=# DROP TABLE foo1; gaussdb=# DROP TABLE foo2; 父主题: E
相关链接 ANALYZE | ANALYSE 父主题: E
gaussdb=# DROP TABLE chinamap; 父主题: E
单精度范围 -3.402E+38~+3.402E+38,6位十进制数字精度。 floatvector不支持NULL、Nan、Inf作为元素,当向量中含有NULL值,数据库会报错。 floatvector不能为NULL,当插入、更新或转换NULL值作为向量数据时,数据库会报错。
16,2),(1,1.73205080756888),(1.73205080756888,1),(2,2.44929359829471e-16),(1.73205080756888,-0.999999999999999),(1,-1.73205080756888),(3.67394039744206e
16,2),(1,1.73205080756888),(1.73205080756888,1),(2,2.44929359829471e-16),(1.73205080756888,-0.999999999999999),(1,-1.73205080756888),(3.67394039744206e
返回值类型:bytea 示例: 1 2 3 4 5 gaussdb=# SELECT overlay(E'Th\\000omas'::bytea placing E'\\002\\003'::bytea from 2 for 3) AS RESULT; result
返回值类型:bytea 示例: 1 2 3 4 5 gaussdb=# SELECT overlay(E'Th\\000omas'::bytea placing E'\\002\\003'::bytea from 2 for 3) AS RESULT; result
返回值类型:int 示例: 1 2 3 4 5 openGauss=# SELECT position(E'\\000om'::bytea in E'Th\\000omas'::bytea) AS RESULT; result -------- 3 (1 row)
返回值类型:bytea 示例: 1 2 3 4 5 gaussdb=# SELECT overlay(E'Th\\000omas'::bytea placing E'\\002\\003'::bytea from 2 for 3) AS RESULT; result