68 lines
2.7 KiB
SQL
68 lines
2.7 KiB
SQL
create table t1(a int, b int, c int, d int);
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insert into t1 values(1, 2 ,3 ,4),(5, 6 ,7, 8);
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select a + b + current_timestamp as col1 from t1 where col1 = 1;
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select a + b as col1, b + c + d as col2, c + col2 as col3 from t1 order by 1, 2, 3;
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select a + b as col1, a + c + col1 as col2, b + c + d as col3, c + col3 as col4 from t1 order by 1, 2 ,3 ,4;
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select a + b as col1, a + c + col1 as col2 from t1 group by col1, col2 having col1 < 10;
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select case when a = 1 then a else b end as col1, c + col1 as col2, sum(c) as col3 from t1 group by col1, col2 having col2 < 10;
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create table t2(a int, b varchar, c text);
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insert into t2 values(1, 'varchar123', 'varchar123');
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select substr(b, 8, 3) as col1, substr(c, 8, 3) || col1 as col2, a + col2 as col3 from t2 where a + col1 = 124 and col2 = 123123 and col3 = 123124;
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insert into t1 values(123, 4, 5, 6);
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insert into t1 values(1, 4, 5, 6);
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select substr(b, 8, 3) as col1 from t1 join t2 on( col1 = t1.a) order by 1;
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drop table t1;
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drop table t2;
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--column
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create table t1_col(a int, b int, c int, d int) with (orientation=column);
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COPY t1_col(a, b, c, d) FROM stdin;
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1 2 3 4
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5 6 7 8
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123 4 5 6
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1 4 5 6
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\.
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select a + b + current_timestamp as col1 from t1_col where col1 = 1;
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select a + b as col1, b + c + d as col2, c + col2 as col3 from t1_col order by 1, 2, 3;
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select a + b as col1, a + c + col1 as col2, b + c + d as col3, c + col3 as col4 from t1_col order by 1, 2, 3, 4;
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select a + b as col1, a + c + col1 as col2 from t1_col group by col1, col2 having col1 < 10 order by 1, 2;
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select case when a = 1 then a else b end as col1, c + col1 as col2, sum(c) as col3 from t1_col group by col1, col2 having col2 < 10 order by 1, 2, 3;
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create table t2_col(a int, b varchar, c text)with (orientation=column);
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copy t2_col FROM stdin;
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1 varchar1 varchar1
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2 varchar12 varchar12
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3 varchar123 varchar123
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\.
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select substr(b, 8, 3) as col1, substr(c, 8, 3) || col1 as col2, a + col2 as col3 from t2_col where
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a + col1 = 126 and col2 = 123123 and col3 < 123129 order by 1,2,3;
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select substr(t2_col.b, 8, 3) as col1 from t1_col, t2_col where col1 = t1_col.a order by 1;
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select substr(t2_col.b, 8, 3) as col1, ROW_NUMBER() OVER(PARTITION BY col1) AS QUA_ROW_NUM_1 from t1_col, t2_col where col1 = t1_col.a order by 1, 2;
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select substr(t2_col.b, 8, 3) as col1, ROW_NUMBER() OVER(PARTITION BY col1) AS QUA_ROW_NUM_1 from t1_col, t2_col where col1 = t1_col.a and QUA_ROW_NUM_1 < 10 order by 1;
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select '1' col1 from t1_col where col1 + 5 = 6 order by 1;
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select a + b col1, col1 || col1 from t1_col order by 1, 2;
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select a as col1, b as col1 from t1_col where col1 = 1;
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select a as col1, b as col1, c + col1 from t1_col;
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select a as col1, c + col10 from t1_col;
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drop table t1_col;
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drop table t2_col;
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