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19 lines
752 B
SQL
19 lines
752 B
SQL
set autocommit=0;
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select 'q1', nation.* from nation;
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update nation set n_comment='x' where n_nationkey <= n_regionkey;
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select 'q2', nation.* from nation;
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rollback;
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select 'q3', nation.* from nation;
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update nation set n_comment='x' where n_nationkey = n_regionkey;
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select 'q4', nation.* from nation;
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rollback;
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select 'q5', nation.* from nation;
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update nation set n_comment='x' where n_nationkey > n_regionkey;
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select 'q6', nation.* from nation;
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rollback;
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select 'q7', count(*) from orders where o_orderkey<o_custkey and o_shippriority < o_custkey;
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update orders set o_orderkey=o_custkey where o_orderkey<o_custkey and o_shippriority < o_custkey;
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select 'q8', count(*) from orders where o_orderkey=o_custkey and o_shippriority < o_custkey;
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rollback;
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