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    http://www.w3schools.com/sql/sql_select.asphttp://www.w3schools.com/sql/sql_intro.asp
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    http://www.w3schools.com/sql/sql_intro.asphttp://www.w3schools.com/sql/sql_select.asphttp://www.w3schools.com/sql/sql_syntax.asphttp://www.w3schools.com/sql/sql_distinct.asp
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    http://www.w3schools.com/ado/default.asphttp://www.w3schools.com/php/default.asphttp://www.w3schools.com/sql/sql_syntax.asphttp://www.w3schools.com/sql/sql_distinct.asphttp://www.w3schools.com/sql/sql_select.asphttp://www.w3schools.com/sql/sql_where.asp
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    http://www.w3schools.com/sql/sql_select.asphttp://www.w3schools.com/sql/sql_where.asphttp://www.w3schools.com/sql/sql_distinct.asphttp://www.w3schools.com/sql/sql_and_or.asp
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    http://www.w3schools.com/sql/sql_distinct.asphttp://www.w3schools.com/sql/sql_and_or.asphttp://www.w3schools.com/sql/sql_where.asphttp://www.w3schools.com/sql/sql_orderby.asp
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    http://www.w3schools.com/sql/sql_where.asphttp://www.w3schools.com/sql/sql_orderby.asphttp://www.w3schools.com/sql/sql_and_or.asphttp://www.w3schools.com/sql/sql_insert.asp
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    http://www.w3schools.com/sql/sql_and_or.asphttp://www.w3schools.com/sql/sql_insert.asphttp://www.w3schools.com/sql/sql_orderby.asphttp://www.w3schools.com/sql/sql_update.asp
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    http://www.w3schools.com/sql/sql_orderby.asphttp://www.w3schools.com/sql/sql_update.asphttp://www.w3schools.com/sql/sql_insert.asphttp://www.w3schools.com/sql/sql_delete.asp
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    http://www.w3schools.com/sql/sql_insert.asphttp://www.w3schools.com/sql/sql_delete.asphttp://www.w3schools.com/sql/sql_update.asphttp://www.w3schools.com/sql/sql_tryit.asp
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    http://www.w3schools.com/sql/sql_update.asphttp://www.w3schools.com/sql/sql_tryit.asphttp://www.w3schools.com/sql/sql_delete.asphttp://www.w3schools.com/sql/sql_top.asp
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    http://www.w3schools.com/sql/sql_delete.asphttp://www.w3schools.com/sql/sql_top.asphttp://www.w3schools.com/sql/sql_tryit.asphttp://www.w3schools.com/sql/sql_like.asp
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    http://www.w3schools.com/sql/sql_tryit.asphttp://www.w3schools.com/sql/sql_like.asphttp://www.w3schools.com/sql/sql_top.asphttp://www.w3schools.com/sql/sql_wildcards.asp
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    http://www.w3schools.com/sql/sql_wildcards.asphttp://www.w3schools.com/sql/sql_between.asphttp://www.w3schools.com/sql/sql_in.asphttp://www.w3schools.com/sql/sql_alias.asp
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    http://www.w3schools.com/sql/sql_in.asphttp://www.w3schools.com/sql/sql_alias.asphttp://www.w3schools.com/sql/sql_between.asphttp://www.w3schools.com/sql/sql_join.asp
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    http://www.w3schools.com/sql/sql_between.asphttp://www.w3schools.com/sql/sql_join.asphttp://www.w3schools.com/sql/sql_alias.asphttp://www.w3schools.com/sql/sql_join_inner.asp
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    http://www.w3schools.com/sql/sql_alias.asphttp://www.w3schools.com/sql/sql_join_inner.asphttp://www.w3schools.com/sql/sql_join.asphttp://www.w3schools.com/sql/sql_join_left.asp
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    http://www.w3schools.com/sql/sql_join.asphttp://www.w3schools.com/sql/sql_join_left.asphttp://www.w3schools.com/sql/sql_join_inner.asphttp://www.w3schools.com/sql/sql_join_right.asp
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    http://www.w3schools.com/sql/sql_join_inner.asphttp://www.w3schools.com/sql/sql_join_left.asphttp://www.w3schools.com/sql/sql_join_full.asp
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    http://www.w3schools.com/sql/sql_join_left.asphttp://www.w3schools.com/sql/sql_join_full.asphttp://www.w3schools.com/sql/sql_join_right.asphttp://www.w3schools.com/sql/sql_union.asp
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    http://www.w3schools.com/sql/sql_join_right.asphttp://www.w3schools.com/sql/sql_union.asphttp://www.w3schools.com/sql/sql_join_full.asphttp://www.w3schools.com/sql/sql_select_into.asp
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    http://www.w3schools.com/sql/sql_join_full.asphttp://www.w3schools.com/sql/sql_select_into.asphttp://www.w3schools.com/sql/sql_union.asphttp://www.w3schools.com/sql/sql_create_db.asp
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    http://www.w3schools.com/sql/sql_select_into.asphttp://www.w3schools.com/sql/sql_create_table.asphttp://www.w3schools.com/sql/sql_create_db.asphttp://www.w3schools.com/sql/sql_constraints.asphttp://www.w3schools.com/sql/sql_datatypes.asp
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    http://www.w3schools.com/sql/sql_create_db.asphttp://www.w3schools.com/sql/sql_constraints.asphttp://www.w3schools.com/sql/sql_create_table.asphttp://www.w3schools.com/sql/sql_notnull.asp
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    http://www.w3schools.com/sql/sql_create_table.asphttp://www.w3schools.com/sql/sql_notnull.asphttp://www.w3schools.com/sql/sql_constraints.asphttp://www.w3schools.com/sql/sql_unique.asphttp://www.w3schools.com/sql/sql_constraints.asphttp://www.w3schools.com/sql/sql_unique.asphttp://www.w3schools.com/sql/sql_notnull.asphttp://www.w3schools.com/sql/sql_primarykey.asp
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    http://www.w3schools.com/sql/sql_notnull.asphttp://www.w3schools.com/sql/sql_primarykey.asphttp://www.w3schools.com/sql/sql_unique.asphttp://www.w3schools.com/sql/sql_foreignkey.asp
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    http://www.w3schools.com/sql/sql_unique.asphttp://www.w3schools.com/sql/sql_foreignkey.asphttp://www.w3schools.com/sql/sql_primarykey.asphttp://www.w3schools.com/sql/sql_check.asp
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    http://www.w3schools.com/sql/sql_primarykey.asphttp://www.w3schools.com/sql/sql_check.asphttp://www.w3schools.com/sql/sql_foreignkey.asphttp://www.w3schools.com/sql/sql_default.asp
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    http://www.w3schools.com/sql/sql_foreignkey.asphttp://www.w3schools.com/sql/sql_default.asp
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    http://www.w3schools.com/sql/sql_check.asphttp://www.w3schools.com/sql/sql_create_index.asp
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    http://www.w3schools.com/sql/sql_check.asphttp://www.w3schools.com/sql/sql_create_index.asphttp://www.w3schools.com/sql/sql_default.asphttp://www.w3schools.com/sql/sql_drop.asp
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    http://www.w3schools.com/sql/sql_default.asphttp://www.w3schools.com/sql/sql_drop.asphttp://www.w3schools.com/sql/sql_create_index.asphttp://www.w3schools.com/sql/sql_alter.asp
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    http://www.w3schools.com/sql/sql_create_index.asphttp://www.w3schools.com/sql/sql_alter.asphttp://www.w3schools.com/sql/sql_drop.asphttp://www.w3schools.com/sql/sql_autoincrement.asp
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    http://www.w3schools.com/sql/sql_datatypes.asp
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    http://www.w3schools.com/sql/sql_drop.asphttp://www.w3schools.com/sql/sql_autoincrement.asphttp://www.w3schools.com/sql/sql_alter.asphttp://www.w3schools.com/sql/sql_view.asp
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    http://www.w3schools.com/sql/sql_alter.asphttp://www.w3schools.com/sql/sql_view.asphttp://www.w3schools.com/sql/sql_autoincrement.asphttp://www.w3schools.com/sql/sql_dates.asp
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    http://www.w3schools.com/sql/sql_autoincrement.asphttp://www.w3schools.com/sql/sql_dates.asphttp://www.w3schools.com/sql/sql_view.asphttp://www.w3schools.com/sql/sql_null_values.asp
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    http://www.w3schools.com/sql/func_now.asphttp://www.w3schools.com/sql/func_curdate.asphttp://www.w3schools.com/sql/func_curtime.asphttp://www.w3schools.com/sql/func_date.asphttp://www.w3schools.com/sql/func_extract.asphttp://www.w3schools.com/sql/func_date_add.asphttp://www.w3schools.com/sql/func_date_sub.asphttp://www.w3schools.com/sql/func_datediff_mysql.asphttp://www.w3schools.com/sql/func_date_format.asphttp://www.w3schools.com/sql/func_getdate.asphttp://www.w3schools.com/sql/func_datepart.asphttp://www.w3schools.com/sql/func_dateadd.asphttp://www.w3schools.com/sql/func_datediff.asphttp://www.w3schools.com/sql/func_convert.asp
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    http://www.w3schools.com/sql/sql_view.asphttp://www.w3schools.com/sql/sql_null_values.asphttp://www.w3schools.com/sql/sql_dates.asphttp://www.w3schools.com/sql/sql_isnull.asp
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    http://www.w3schools.com/sql/sql_dates.asphttp://www.w3schools.com/sql/sql_isnull.asp
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    http://www.w3schools.com/sql/sql_null_values.asphttp://www.w3schools.com/sql/sql_datatypes.asp
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    http://www.w3schools.com/sql/sql_null_values.asphttp://www.w3schools.com/sql/sql_datatypes.asphttp://www.w3schools.com/sql/sql_isnull.asphttp://www.w3schools.com/sql/sql_functions.asp
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    http://www.w3schools.com/sql/sql_isnull.asphttp://www.w3schools.com/sql/sql_functions.asphttp://www.w3schools.com/sql/sql_datatypes.asphttp://www.w3schools.com/sql/sql_func_avg.asp
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    http://www.w3schools.com/sql/sql_functions.asphttp://www.w3schools.com/sql/sql_func_count.asphttp://www.w3schools.com/sql/sql_func_avg.asphttp://www.w3schools.com/sql/sql_func_first.asp
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    http://www.w3schools.com/sql/sql_func_first.asphttp://www.w3schools.com/sql/sql_func_count.asphttp://www.w3schools.com/sql/sql_func_last.asp
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    http://www.w3schools.com/sql/sql_func_first.asphttp://www.w3schools.com/sql/sql_func_max.asphttp://www.w3schools.com/sql/sql_func_last.asphttp://www.w3schools.com/sql/sql_func_min.asp
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    http://www.w3schools.com/sql/sql_func_last.asphttp://www.w3schools.com/sql/sql_func_min.asphttp://www.w3schools.com/sql/sql_func_max.asphttp://www.w3schools.com/sql/sql_func_sum.asp
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    http://www.w3schools.com/sql/sql_func_max.asphttp://www.w3schools.com/sql/sql_func_sum.asphttp://www.w3schools.com/sql/sql_func_min.asphttp://www.w3schools.com/sql/sql_groupby.asp
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    http://www.w3schools.com/sql/sql_func_min.asphttp://www.w3schools.com/sql/sql_groupby.asphttp://www.w3schools.com/sql/sql_func_sum.asphttp://www.w3schools.com/sql/sql_having.asp
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    http://www.w3schools.com/sql/sql_groupby.asphttp://www.w3schools.com/sql/sql_func_ucase.asphttp://www.w3schools.com/sql/sql_having.asphttp://www.w3schools.com/sql/sql_func_lcase.asp
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    http://www.w3schools.com/sql/sql_having.asphttp://www.w3schools.com/sql/sql_func_lcase.asphttp://www.w3schools.com/sql/sql_func_ucase.asphttp://www.w3schools.com/sql/sql_func_mid.asp
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    http://www.w3schools.com/sql/sql_func_ucase.asphttp://www.w3schools.com/sql/sql_func_mid.asphttp://www.w3schools.com/sql/sql_func_lcase.asphttp://www.w3schools.com/sql/sql_func_len.asp
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    http://www.w3schools.com/sql/sql_func_mid.asphttp://www.w3schools.com/sql/sql_func_round.asp
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    http://www.w3schools.com/sql/sql_func_mid.asphttp://www.w3schools.com/sql/sql_func_round.asphttp://www.w3schools.com/sql/sql_func_len.asphttp://www.w3schools.com/sql/sql_func_now.asp
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    http://www.w3schools.com/sql/sql_func_len.asphttp://www.w3schools.com/sql/sql_func_now.asp
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    http://www.w3schools.com/sql/sql_func_round.asphttp://www.w3schools.com/sql/sql_func_format.asphttp://www.w3schools.com/sql/sql_func_round.asphttp://www.w3schools.com/sql/sql_func_format.asp
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    http://www.w3schools.com/sql/sql_func_now.asphttp://www.w3schools.com/sql/sql_quickref.asp
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    http://www.w3schools.com/sql/sql_func_now.asphttp://www.w3schools.com/sql/sql_quickref.asphttp://www.w3schools.com/sql/sql_func_format.asphttp://www.w3schools.com/sql/sql_hosting.asp
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    http://www.w3schools.com/sql/sql_func_format.asphttp://www.w3schools.com/sql/sql_hosting.asphttp://www.w3schools.com/sql/sql_quickref.asphttp://www.w3schools.com/sql/sql_summary.asphttp://www.w3schools.com/hosting/default.asphttp://www.w3schools.com/sql/sql_quickref.asphttp://www.w3schools.com/sql/sql_summary.asphttp://www.w3schools.com/sql/sql_hosting.asphttp://www.w3schools.com/sql/sql_quiz.asp
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    http://www.w3schools.com/ado/default.asphttp://www.w3schools.com/php/default.asphttp://www.w3schools.com/sql/sql_hosting.asphttp://www.w3schools.com/sql/sql_quiz.asphttp://www.w3schools.com/sql/sql_summary.asphttp://www.w3schools.com/sql/default.asp
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    http://www.w3schools.com/quiztest/quiztest.asp?qtest=SQL